The past itself doesn’t exist – only your memory of it. It’s a very important distinction to make. It’s impossible to exist outside of the now. Time is something we have created in this three dimensional world. Once you exit 3d space, it’s gone. You can actually test this in the astral. What feels like hours in the astral can be literally minutes here. It ends up as whatever you want it to be in the end. Time is not a universal concept.