1651. I expand this verse for bringing out the meaning. A verbal rendering will become unintelligible.
1652. This is a difficult verse, I am not sure that I have understood it correctly. The sense to be that Prakriti, which is really unintelligent and incapable of enjoyment or endurance, becomes intelligent and capable of enjoyment or endurance in consequence of being united with Purusha who is intelligent. Thus when pleasurable or painful sensation are felt, it is the body that seems to feel it only in consequence of the Soul that presides over it.
1653. The first line of 7 is the same in sense as the second line of 8. In the Bombay text, only the second line of 8 occurs, while the first line of 7 has been justly omitted. In fact, Tattwa and the Prakriti are the same thing.
1654. This refers to the opinion of the atheistic Sankhyas.
1655. By the word Rudra is meant Prana and the other breaths. The commentator explains that the etymology is utkramana kale dehinam rodayanti iti Rudrah Pranah. By regulating the vital breaths and the senses, Yogins attain to Yoga puissance and succeed in roving wherever they please in their linga-sarira or subtile bodies.
1656. The eight limbs of Yoga are Pranayama, Pratyahara, Dhyana, Dharana, Tarka, Samadhi, with the two additional ones of Yama and Niyama.
1657. In the first line of 9 the word Pranayama is used to mean regulation of the vital breaths. In the second line, the same word implies the ayamah or nigraha of the senses with the mind. By Dharana is meant the fixing of the mind, one after another, on the sixteen things named in treatises on Yoga. By ekagrata of the mind is meant that concentration in which there is no longer any consciousness of difference between Dhyatri, Dhyeya, and Dhyana.
1658. It is difficult for those who do not practise Pranayama to understand this fully. The fact is, Saguna Pranayama, when the breath is inhaled, the inhalation is measured by the time taken up in mentally reciting a well-known mantra. So when inhaled breath is suspended, the suspension is measured by the time taken in mentally reciting a particular mantra. When therefore, the suspended breath should be exhaled, it should be done by similarly measuring the time of exhaling. For beginners, this Saguna Pranayama is recommended. Of course only exhalation has been spoken of but it applies equally to inhalation and suspension. These three processes, in Yoga language, are Puraka, Kumbhaka, and Rechaka.
1659. Ekantasilin means a Sannyasin, Atmarama is one who takes pleasure in one's soul instead of in spouses and children.
1660. The pole-star.