Love from below awakens love from above

"Avram journeyed, going on toward the south." The Kedushas Levi explains, following the holy Zohar, that the south represents chessed, which is love, and that Avraham served Hashem through the middah of love. The Zohar teaches that an action below awakens a response above. Because Avraham went toward Hashem in love, he drew Hashem's love toward himself, measure for measure, as the navi calls him "Avraham who loved Me." His love rose from below to above, and Hashem's love flowed back from above to below.