Then he said to Indradyumna Bhâllaveya: 'O Vaiyâghrapadya, whom do you meditate on as the Self?' He replied: 'Air only, venerable king.' He said: 'The Self which you meditate on is the Vaisvânara Self, called Prithagvartman (having various courses). Therefore offerings come to you in various ways, and rows of cars follow you in various ways.

In plain words: The king asks Indradyumna what he worships as the Self, and he says the air. The king says air is one part of the universal Self, the one that 'moves in many paths.' That is why gifts reach him from many directions and many carriages follow him.