Four Cubits to Eternity
Whoever walks a distance of four cubits in Eretz Yisrael is assured of being a member of the World to Come.
This statement cited in the name of Rabbi Yochanan is based on the passage in which God is described as forming Eretz (Yisrael) and “giving life to those who walk in it” (Yeshayahu 42:5).
Our Sages saw such a powerful link between Eretz Yisrael and the World to Come that one of them even declared that resurrection of the dead will take place only in Eretz Yisrael, and the remains of those buried elsewhere will have to roll to Eretz Yisrael through tunnels created for them.
(Ketubos 111a)