I've seen mention that the what the janitor says after you've found your latest constellation is a clue to what the next one will be. Looking at the evidence now, I think it's actually a clue to WHERE to look for the next constellation.
5) Fun watching the lights up in the ceiling: disco ball reflecting lights up near the ceiling
4) Were you born in a barn: look out from inside a farm building
3)Those lights above each statue sure are pretty when they light up: the lights on the ground light up when you click on them
Not too sure about 1 & 2, unless curse you is a reference to the tomb - anyone else notice it's barred on the OUTside as if the need was to keep something locked inside?

It's always easiest to see/make connections after the fact of course and there may be nothing to this...