Within this game is a side quest, started by conversing with the Holy Man. However one may only start this quest if their Mind Magic skill is high enough (40 I beleive). Beyond these locked doors there are portals, one on each side. The East door has the portal where the Mother Eye is looming, which is your primary target in this quest. That is just a brief synopsis to that quest and the reference to why there are 2 doors in the cave. Hope I helped!!
