The suksmavisayatvath ca alihga paryavasanam sutra explains about the metamorphosis of consciousness through various stages to reach a subtle, dissolving state. The consciousness accomplishes its goal when it has penetrated the infinitesimal particles of nature. However there is thin line between the two states of form- prakriti and pradhana. A body is build of several of these particles, the small self. The outer self, the `I` remains unchanged.

suksmavisayatvam subtle object
ca and
alihga having no characteristic mark, un-manifested form
paryavasanam ending

The subtlest level of nature (prakrti) is consciousness. When consciousness dissolves in nature, it loses all marks and becomes pure.

By exploring the understated particles of nature, the consciousness attains its destination. It is a state of complete termination of the fluctuations of the mind. That is the subtle, infinitesimal intelligence (mahat) of nature (prakrti).

Prakrti and pradhana original or natural form of anything, nature; alihga, un-manifested form
Prakrti Pradhana primary or original matter, the first evolved source of the material world, that which is placed or set before, chief or principal thing (these are all liable to change, while the soul (purusa) is changeless)

The subtlest of the infinitesimal principles of nature is the cosmic intelligence (mahat), which in an individual is transformed as the `I` in a forceful, minute form, called asmita or the small self. Though the Self does not change, the small self brings about changes in a human being due to the influence of nature`s qualities. The body is made up of the particles oi prakrti - from its outermost sheath, the body, to its innermost core, the deep Self. When the individual self, the `I` is quieted down by yogic practices, prakrti has reached its end and unites with the Self. This is subjective experience, or subjective knowledge.

The sadhaka attains purity in buddki and ahamkara, the infinitesimal source or summit of nature, mula-prakrti.

Here, the sadhaka has reached the juncture of Self-Realisation.