1554. He went on his journeys means according to plan, as can be seen from the symbolism of journeys or travels as further progress (discussed in §1457). Since the progress followed a plan, the journeys here have this meaning and no other.
From infancy, the Lord advanced toward heavenly goals and reached them exactly according to the divine plan. The nature of this plan is depicted by Abram on an inner level.
Everyone that the Lord creates anew also follows such a plan, although it differs from person to person, depending on the individual's nature and bent of mind. What plan an individual is following while being reborn, though, is not known to a single soul (not even to angels, except in a shadowy way) but only to the Lord.