Cult Shrines are special locations scattered about the Nexal planes which are dedicated to the Elder Powers. There is exactly one shrine for each Power, and it is the "seat" of worship for the Power's cult.
The location of a cult's shrine is located on the profile page for the specific cult in question.
There are two primary functions of a cult shrine: Dedication and Sacrifice.
When at a shrine, if a character meets the entrance requirements for the cult (is of the correct class, level, and any other requirements), he may be given the option to "Dedicate" to that specific cult.
Dedicating to a cult requires an expense of 20 Magic Points. After this is done, the character will forever more be a member of the cult in question.
Characters who are members of the shrine's patron cult may sacrifice items of worth to the power in question in return for a chance at earning points of Favor.
More than one item may be sacrificed at a time.
A favor grant is not guaranteed. However, the higher the "sum total" of the value of all items in the sacrifice, the more likely that favor will be granted.
Different items are of different value for sacrifice. For example, a magical sword is a far more valuable sacrifice than a normal sword. The higher the value of the item, the more likely that favor will be granted to the cultist.