The son of Itar[=a], knowing this, lived one hundred and sixteen years.

He who knows this lives one hundred and sixteen years (3.16).
Then, for the abolition of all sacrifice, follows a chapter which explains that man may sacrifice symbolically, so that, for example, gifts to the priests (a necessary adjunct of a real sacrifice) here become penance, liberality, rectitude, non-injury, truth-speaking (_ib._ 17.

4).

There follows then the identification of _brahma_ with mind, sun, breath, cardinal points, ether, etc, even puns being brought into requisition, _Ka_ is _Kha_ and _Kha_ is _Ka_ (4.

10.
5);[9] earth, fire, food, sun, water, stars, man, are _brahma_, and _brahma_ is the man seen in the moon (4.12.