The idea of a reason justifying fulfillment of a commandment or giving authority to the Halachah is foreign to Jewish thought. G-d, the Creator and Master of all of existence, has the right to command, to forbid and to obligate us regardless of our lack of comprehension of the reasons behind His commands. In the words of Rabbi Samson Raphael Hirsch (Foreword to Horeb), "Even, therefore, if every Divine precept were a riddle to us and presented us with a thousand unsolved and insoluble problems, the obligatory character of the commandments would not in the slightest degree be impaired by this. Whatever command or prohibition of G-d it may be that prompts one to ask why one should do this and not do that, there is but one answer: Because it is the will of G-d...

In a similar vein, Rabbi Hirsch writes in a footnote to his book "The Nineteen Letters" (Eighteenth Letter), "As in Nature, the phenomenon remains a fact although we have not yet comprehended it as to its causes and connections, and its existence is not dependent on our investigation, but vice versa, thus also the components of the Torah remain the law even if we have not discovered the cause and connection of a single one."

Jewish scholars throughout time have all attempted to find reasons for the commandments, including the chukim or statutes (usually understood to be commandments that have no rationale comprehensible to the human mind). Nachmanides (Deuteronomy 22:6) points out that all commandments even statutes have reasons, and that "the absence of reasons for the Torah (that we can understand), is a result of our own intellectual blindness." He quotes a statement of our Sages (Midrash Rabbah, Numbers 19:3-4) that G-d revealed to Moses the reasoning behind the laws of the Red Heifer, perhaps the archetypal statute, whose ashes purify the defiled, yet defile the pure.

Similarly Maimonides (Guide for the Perplexed 3:31) maintains that all the commandments have reasons. "Every commandment of the 613 commandments either imparts to us a true philosophy, eradicates a false philosophy, enforces a rule of social justice, nullifies injustice, bestows noble character traits, or warns against evil traits." He qualifies this, however, and stresses that this is true only of the broad outlines of the commandment , and states that no human has any hope of understanding the reasons behind the details of a commandment (ibid., 3:26), "In my opinion, one who engages in creating reasons for the details of a commandment is acting under the influence of a major delusion." (In contrast to the view of Maimonides, the Kabbalists and Rabbi S.R.Hirsch have given reasons for even the most minute details of the commandments.)

Maimonides directs us to investigate all of the commandments and to uncover as much of their reasoning as possible. As he states in Laws of Misappropriation (8:8), "It is correct for a person to investigate the laws of the Holy Torah and to know their purpose to the best of his abilities. If he does not find a reason or purpose in something it should not be light in his eyes ...he should not reject the commandments because he does not know their reasons, and he should not attribute false ideas to G-d or think about them as of profane matters..."

He also writes, "Even though all the chukim of the Torah are decrees, as we explained at the end of the Laws of Misappropriation it is correct to contemplate them, and to offer reasons wherever possible." (Laws of Exchanges, 4:13. See also, Guide for the Perplexed, 3:48 and commentaries ad loc; Nachmanides, Deuteronomy 22:6. See also, Babylonian Talmud, Tractate Megilah 25a, Rashi and Tosfot, ad loc. where it is implied that there are no reasons for the chukim.)

A human being cannot possibly hope to comprehend the infinite wisdom of G-d, and to understand His "motives" in commanding us to do a particular commandment or to refrain from a transgression. It is possible, however, for the human to understand what effect the commandment will have on himself and on the world.

Nachmanides (Deuteronomy 22:6) quotes the Midrash Rabbah (Genesis 44:1) which seems to address this issue. The Midrash asks, "What does it matter to G-d if an animal is slaughtered by cutting its neck through the spine or the throat?" The answer of the Midrash is, "The commandments were given in order to refine mankind, as it says "all the words of G-d are refined." This suggests, that from G-d's point of view there is no difference between kosher slaughter and unkosher slaughter, implying that it is futile to try to find a motive or a reason for a particular commandment other than its impact on the human being.

Nachmanides quotes a parallel midrash from the Midrash Tanchumah (Leviticus 12) as support for the above understanding of the Midrash Rabbah; "What does it matter to G-d whether we slaughter an animal or kill it and eat it? Can you at all aid Him or harm Him?!... If you have acquired wisdom, the wisdom is yours. Rather, the commandments were given in order to refine mankind..." According to Nachmanides, both the Midrashim are stressing the idea that the principal beneficiaries of the commandments are the Jewish people, not G-d. As the Midrash asks, "Can you at all aid Him or harm Him?!"-- our fulfillment of commandments does not exert influence on G-d's essence at all, rather they affect the person who performs the commandments, refining and elevating the human being.

Both Maimonides (Guide for the Perplexed 3:31) and Nachmanides understand that the reasons for the commandments not as the "motives" behind the commandments but as the side-benefits of the commandments; the impact that the commandments have on the individual, on society or on the universe as a whole. They disagree as to what those benefits are and as to how the commandments impart those benefits; Maimonides stresses the sociological and psychological whereas Nachmanides stresses the metaphysical. All agree, however, that the commandments have "reasons," and that G-d does not benefit from our fulfillment of the commandments; rather, it is we who are refined by the commandments and it is humans who are the main beneficiaries.

My revered teacher, Rabbi Moshe Shapiro, once asked Rabbi Eliyahu Dessler to explain the term "taamei hamitzvot" (the Hebrew term used by the Talmud for the reasons of the commandments). Rabbi Dessler replied, "The taam of a commandment is the taste of a commandment ." Rabbi Dessler, translated the word taam literally, as 'taste,' and explained that just as we eat food in order to survive, we nevertheless enjoy its variety of tastes and textures as a pleasant side benefit of eating. Similarly, G-d made the commandments with varied "tastes"; we fulfill the commandments because they are the will of G-d and they are His instructions for living; but investment in the commandments also pays other dividends, which are explained in the literature of taamei hamitzvot.

Rabbi Shapiro explained that according to Rabbi Dessler the principal purpose in the knowledge of the "taamei hamitzvot" is to make the commandments palatable to the person performing them, as an incentive for their fulfillment. As our Sages advise, "One should engage in Torah and commandments even for the wrong reasons [i.e. in order to obtain the benefits of the commandments] since this will eventually lead [to observance] for the correct reason [i.e. the love of G-d]." (Pesachim 50b, Mesoret Hashas, ad loc. See Petichtah Eichah Rabbah, 2)

Rabbi David Gottlieb commented that performing a commandment with a deep understanding of its function makes the fulfillment qualitatively better. The act of a commandment is not just a physical action; it involves heart and mind. He also explained that the taamei hamitzvot are explanations of how the behavioral rules of Judaism are connected to the goals and values of Judaism, and through the knowledge of the taamei hamitzvot we will have a more correct idea of what Judaism considers to be a value.

There may be another important reason for the study of taamei hamitzvot, based on a passage in Maimonides's introduction to his commentary on Ethics of the Fathers (Shmonah Perakim, Chapter 6). In this chapter Maimonides discusses which is the higher level of morality, one who conquers his evil inclination, or one who has no inclination to do evil. Maimonides maintains that the higher level is the latter, a pious person (chasid); one whose desire is to do only good and who finds evil instinctively abhorrent. He brings support for this idea from the philosophers and from verses in Proverbs (21:10), "The soul of the evil person desires evil"; "The righteous person rejoices in acting justly" (21:15). Maimonides then quotes a number of statements of the Rabbis of the Mishnah and Talmud that seem to contradict this idea and imply that the highest level of piety is conquering the desire for evil. For example, the Sifrah (Parshat Kedoshim) states, "Rabbi Shimon ben Gamliel said 'A person should not say, 'I do not like meat and milk mixtures'... rather, he should say, 'I would like it but what can I do? My Father in heaven has decreed upon me (not to partake of it).'"

Maimonides resolves this apparent contradiction in the following way. "Regarding the evils that the philosophers agree areevil, the Sages said that one who does not desire them at all is greater than one who conquers his desire... such as murder and theft... But regarding those evils that would be acceptable had the Torah not forbidden them, the Sages said that one should desire them and refrain from transgression only because of the Torah's prohibition."

According to Maimonides, it is desirable for a person to incorporate certain commandments into his character so that his performance of commandments or his refraining from transgression are not the result of internal struggle, but are the natural consequences of his personality. This is only true, however, of commandments whose rationale are apparent; with regard to chukim, obedience to G-d should be the only motivation in their fulfillment.

Knowledge of the rationale of the commandments is essential for incorporating the commandments into one's personality and for the shaping of a Jewish instinct. One who fulfills the commandments in a dry, mechanical way, without "taste," has less chance of being one who "rejoices in acting justly." There are certain commandments, and perhaps particular aspects of every commandment , that are designed to instill in us loyalty and obedience to G-d, and to help us recognize that the authority of the Torah does not depend upon our understanding of it. The reasons for those commandments still remain concealed and beyond the grasp of the human mind, even after study. Perhaps that is precisely the taste that one is meant to detect in the chukim.