95. The object or purpose with reference to which an act is performed
or a condition exists is expressed by the preposition "por", for. It
directs the thought toward its complement, contrasting thus with "pro"
(86):
Mi havas libron por vi, I have a book for you.
Mi ne havas la tempon por tiel longa promeno,
I have not the time for so long a (such a long) walk.
Ili faris gxin por via plezuro, they did it for your pleasure.