There is no fixed time or place for action; but all purpose is
governed by a law, according to which the purpose of action is not so
much the attainment of material objects, as perfection or
purification.

Sacrifice means the association together of action, a proper person
and a deity; and the same idea is expressed by the word Juhoti. Dana
or charity is connected with the idea of renunciation. It is a law
that when one action ends, another begins. It is action that creates,
and so is linked up with a purpose.

More on the subject is explained at:

http://www.narachphilosophy.com/action_purpose_and_sacrifice_the_method_of_interpretation...

(You may click on the link above or type the complete URL address into
your browser)