When you enter it, it's a completely calm and empty place. After going through one door, you find yourself in great hall. There are 3 other doors and in the middle there is a little room separated by walls from the outside. There are four "dirty" ( = brownish) corridors (roughly in the middle between every two adjacent doors) that lead down into four big dirty caves full of low-level fauna (spiders, cobras, rats, bats, maybe one or two Baa cleric). I use to go there very early in the game, kill these and leave the temple yet for some time.Skeletons appear all around you when you |open a chest that is closed within the box room in the middle of the hall|. My CCSS party went there very late because you need to pack up some brutal force and fight your way from the encirclement in melee.
[ Apparently empty space between |s can be highlighted with your mouse; then it reveals a spoiler. ]