3. Tada drastuh svarupe vasthanam (Chapter 1, v.3)
Then the seer abides in it own nature
This is one of the most important verses in the entire book. It is based upon the fundamental concepts of purusa and prakrti. Purusa is universal consciousness, immutable and untouchable; prakrti is “that which uses matter as its bed”. It is the constantly unfolding, evolving and changing aspects of the universe. Together purusa and prakrti are the yin and yang of yoga philosophy They are expressed in the universe and in the individual as spirit and matter.
“Tada” translates as “then”, meaning when one is in the state of yoga, then the seer, “drastuh”, abides, “vasthanam” in its own, “sva”, form, “rupe”. Thus when one is living in the state of yoga, the seer or purusa which already exists within us, shines out. It is no longer hidden by the agitations of prakrti which have been resolved.
A simple example can explain this verse. In order to create a statue, a sculptor merely removes all the stone that is not the statue; nothing is added to the stone. Likewise, the practice of yoga is not about adding anything to the individual. Instead, as this verse explains, the state of yoga is that state in which everything which is not equanimity is removed from the citta and thus purusa is free to shine out unabated.


