Hole => if you grab into it you
acquire an item each time => sometimes one of 2 yellow gems, sometimes one of those countless bones. I needed about 11 tries to get the stones instead of the bones. Text changes as soon as you have got both stones.
Push => no, not push. Click on the statue and an inventory will open up - then insert the gems into this, but you need more than yellow gems - tip is in the manuscript near the locked gate.
http://www.kiya1.de/beyond/act4screens/Act4draggem0.jpghere is a spoiler pic link. <img src="/ubbthreads/images/graemlins/wave.gif" alt="" />
Kiya