Jim Carrey introduced Eckart Tolle and transcendental meditation
Well... you can get back to the flipside.
A variety of ways to accomplish it - via meditation, between life hypnotherapy, a near death experience, and other consciousness altering events.
I've been writing about these reports in "flipside" and "it's a wonderful afterlife." When we experience that apotheosis, there's a reason for that occuring, there's a logic to it, there's a sequence that allows that to occur, and the architecture of those events can be studied, examined, and made sense of.
Not everyone signs up for that experience and with respect, I've observed that we all choose different paths -- but for those who do want to take that flipside journey, it appears to be something we all can experience when we put our minds to examining, understanding or experiencing it.
My two cents.