Due to what does the body of the five aggregates arise?

The physical body of every sentient being has such an intricate organizational structure, such a refined nervous system, and its functions and operations are even more subtle. The tathāgatagarbha is truly a master craftsman—what kind of design blueprint did He use? Who designed it for Him? How was the physical body constructed according to the blueprint? It is truly marvelous beyond compare!

Why is there the birth of the five-aggregate body? What was the initial cause for the arising of the world and the five-aggregate body? The Śūraṅgama Sūtra mentions a key point: the manas wanted to discern something, and so it reached outward in search, and only then did the undifferentiated world come into being. Before that, there was only the tathāgatagarbha and the manas, dim and obscure. The birth of the five-aggregate body can only be traced back to the tathāgatagarbha, leading to the conclusion: name-and-form is conditioned by consciousness (the eighth consciousness), and consciousness (the eighth consciousness) conditions name-and-form.