In a way, the interdependent character of this world is also shown in the greetings that Wonderful Voice Bodhisattva brings to Shakyauni Buddha: “World-honored one,” he says:

Are your ailments and troubles few? Is your daily life and practice going smoothly? Are the four elements in you in harmony? Are the affairs of the world tolerable? Are living beings easy to save? Are they not excessively greedy, angry, foolish, jealous, and arrogant? Are they not lacking in proper regard for their parents? Are they not disrespectful to novice monks? Do they not have wrong views and inadequate goodness? Are their five emotions not out of control? (LS 366)

Here we can clearly see that the same Buddha who can illuminate the entire universe, the same Buddha whose land this is, the same Buddha who provides us with infinite opportunities to experience joy in service to the Dharma, this same Buddha is far from all-powerful or utterly independent in the fashion of both Indian and Western gods. This is a buddha who is supremely interdependent, one who both serves all others and at the same time is dependent on all others. This Buddha needs bodhisattvas, and needs ordinary human beings to be bodhisattvas in order to accomplish the Buddha’s work of saving all the living.

That is why Wonderful Voice Bodhisattva can take on the form of a buddha. He can become the Buddha for anyone who needs saving grace to come to them in the form of a buddha.