Furthermore, nāma has no efficient power, it cannot occur by its own efficient
power... It does not eat, it does not drink, it does not speak, it does not adopt
postures. And rūpa is without efficient power; it cannot occur by its own
efficient power. For it has no desire to eat, it has no desire to drink, it has no
desire to speak, it has no desire to adopt postures. But rather it is when
supported by rūpa that nāma occurs; and it is when supported by nāma that
rūpa occurs. When nāma has the desire to eat, the desire to drink, the desire
to speak, the desire to adopt a posture, it is rūpa that eats, drinks, speaks
and adopts a posture....
Furthermore (XVIII, 36) we read:
And just as men depend upon
A boat for traversing the sea,
So does the mental body need
The matter-body for occurrence.
And as the boat depends upon
The men for traversing the sea,
So does the matter-body need
The mental body for occurrence.
Depending each upon the other
The boat and men go on the sea.
And so do mind and matter both
Depend the one upon the other.