The main purpose of the Western Temple in the Mountains is to warn the characters of the dangers ahead. Regardless of whether they're travelling from Yjsbso to Qwanet or vice versa, there are things they really ought to know. Things which could get them into really deep trouble if they don't know. And the priests at the Temple will be happy to warn anyone who isn't obviously a troublemaker.
Depending on the direction of travel, consult one of the following