רס”ו ע’ תרס”א-ב. Different aspects and ways a Neshama down here becomes a מהלך. A) The light of Torah reveals the בלי גבול in the Neshama. B) The adversity of the נפש הבהמית (either the בירור of it, or the mere conflict) is what propels the Neshama to access its בלי גבול and become a מהלך C) In Tzadikim this is without conflict, it is from their אהבה בתענוגים. Bottom line: מהלך happens to a נשמה only when she is למטה מלובשת בגוף.
