Part 1b.1h - How the four formless skandhas of name depend on the continuum of mind

Then:

The formless level’s intrinsic awareness is alaya.
In its four one-pointed shamathas on space and such
Are subtle feelings, perceptions, formations, and consciousness.
These four skandhas of name are supported in mind’s continuum.
We may not awake from one-pointed samadhi for a kalpa.
When this is examined, no virtuous seeds are planted at all.

The four natures of feeling, perception, formations, and consciousness that dissolve intoalaya before death are known as the skandhas of name. Since the mental body is supported in the continuity of mind, it goes into the samadhi of one-pointed shamatha. It rests in the four states of limitless space, limitless time, limitless consciousness, and neither perception nor non-perception. Even after an entire kalpa of this, which is like lapsing into deep sleep, no good karma will have been produced. Though no actual bad karma will have been produced either, intrinsic karmic ignorance is activated, and one’s natural ignorance increases.