Aitareyabrahmana 4.16

4.16

They undertake the first six-day period; there are six days.
There are six seasons; season by season they reach the year;
season by season they proceed establishing themselves in the year.
They undertake the second six-day period; there are twelve days.
There are twelve months; month by month they reach the year;
month by month they proceed establishing themselves in the year.
They undertake the third six-day period; there are eighteen days.
They are twofold: nine and nine.
There are nine breaths, and nine heavenly worlds;
they reach the breaths and the heavenly worlds;
they proceed establishing themselves in the breaths and in the heavenly worlds.
They undertake the fourth six-day period; there are twenty-four days.
There are twenty-four half-months; half-month by half-month they reach the year;
half-month by half-month they proceed establishing themselves in the year.
They undertake the fifth six-day period; there are thirty days.
The virāj has thirty syllables; the virāj is food;
they proceed producing the virāj month by month.
Desiring food, indeed, they sit at a sacrificial session.
When they proceed producing the virāj month by month,
they proceed securing food month by month,
for both this world and yonder world.