The truth is:

God was and is an alien being, heaven either represents a large mother ship or it represents the galaxy from which the visitors came.

They left us with rules and laws to obey to help us succeed on Earth, it was interpreted by man and wrote down..later to become known as the bible.

If the Mayan calender is correct, then it may represent the time when the visitors will return to see how we fared, or to take us to another level of accomplishments in science, math and the sciences, thus we would appear to have a "New Earth" a new world where the Earth would become fruitful once again and new discoveries which could abolish all diseases and mans lifespan would increase once again.

That in my opinion is the truth, which i have known since i was a child.