Heaven built the Pyramids, the chamber points to a particular star where there are Sentient Aliens that will someday send some astronauts to Earth. On that races planet there is a similar structure pointed at Earth with a similar shaft so that they know how to get here most likely built by Aliens from Earth called HumanKind who arrived before they were dropped off from Heaven.
Oh. I think I might get it now. Well played Subs
"They might look the same, but they don't taste the same."