Avraham is told לך לך ... אל הארץ אשר אראך. Why does Hashem not immediately reveal Avraham's destination? One interpretation the Midrash says is that Hashem withheld the destination so that Avraham would receive reward for every step of the journey. Why should knowing or not knowing the destination affect the reward he receives for each step? Rav Baruch Povarsky explains that had Avraham been told where he was going, the journey itself would have been merely a hechsher mitzvah, a means of reaching the ultimate goal. The focus would have been on the endpoint, with the travel serving only as preparation. Since no destination was specified, however, every step Avraham took constituted a direct fulfillment of Hashem's command and therefore deserved its own reward.
In other words, Avraham's travels were not simply a journey toward a destination; the journey itself was the mission. Hashem did not tell Avraham to leave solely so that he could arrive in Eretz Yisrael. Rather, the very act of traveling, of moving forward into the unknown with faith and obedience, carried its own significance.
Why was this so important? Because the point is not to reach a destination but to constantly travel . Hashem was teaching Avraham that one cannot become fixated on a single picture of success and assume that once it is achieved, the work is done. There is always more growth to pursue, more to accomplish, and greater heights of character to attain. Life does not conclude with a definitive "The End." A person's spiritual journey is one of constant movement and continual development.
The Kedushat Levi adds another dimension. Since the destination was left undefined, Avraham was required to interpret Hashem's will through the circumstances he encountered along the way. This helps explain why he later descended to Egypt. Sometimes new paths emerge and unexpected detours become necessary. What may appear to be a deviation from the original plan can in fact be part of the journey itself.