MAY have found another clue... i was feeling bored as my friend I were talking about theories for this cave, well, we thought of "you feel a strange chilling presence" as an anagram, so we decoded it, and I found: "Use the Force". Hint maybe? There is more to decode, in the following letters:
L L I C Y L S A N G E I N G R P E S N E .
Feel free to play around with that.
The word Legacy is in there. Alternately the word egg is in there.