^238:3 Tap, as the commentator observes, does not mean here and in similar passages to perform austerities (tapas), such as the Krikkhra, the Kandrayana, &c., but to conceive and to will and to create by mere will. I have translated it by brooding, though this expresses a part only of the meaning expressed by tap.

^238:4 Literally, was opened.

^238:5 Three things are always distinguished here--the place of each sense, the instrument of the sense, and the presiding deity of the sense.

^238:6 Prana, i. e. ghranendriya, must be distinguished from the prana, the up-breathing, one of the five pranas, and likewise from the prana as the principle of life.

^238:7 The Apana, down-breathing, is generally one of the five vital airs which are supposed to keep the body alive. in our place, however, apana is deglutition and digestion, as we shall see in II, 4, 3, 10.