Marcion was a 2nd century heretic who gets a bad rap for many reasons. From what I can tell, he believed in two Gods. The vengeful God of the Old Testament, who created the world, and the good, compassionate and loving God of the New Testament who sent Jesus to rescue us from the evil of the world. Then, he left the OT out of his canon, which included just a shortened Luke's gospel and 10 of Paul's epistles. So he gets an anti-Semitic label that he hated all things Jewish. I think mostly he just couldn't see how the OT fit in with Jesus's message. But modern groups have latched on to his teachings to foment anti-Semitism. And the current Marcionite Christian Church has taken a right-wing anti-vaccine stance. And lastly, he denies the humanity of Jesus, thinking he is just a spirit in a physically appearing body. And the last rap on Marcion, that if Jesus wasn't human, he didn't really suffer on the cross.
It all sounds pretty heretical to orthodox Christianity, but I can take the basic framework and apply it to my own thoughts.
I don't believe in a creator God. I think the universe is infinite. Some scientists theorize that even in a vacuum, there is a virtual energy field from which real particles can form. And there is the dark matter and dark energy that no one understands yet. It could be that it is really light, but we are unable to see it. And maybe on any given planet there are ways to access it. On Earth, this energy took the form of the physically appearing body of Jesus. And he taught us what we needed to do and when he was killed and buried, and then no body was found, he just went back into the energy of the universe, but left us with access to the energy, which some call the Holy Spirit.
Now some believe in the suffering and death and resurrection of Jesus was atonement for our sins. But I look at it that the powers that be, who are only interested in their own profit instead of the universal community, who killed him, didn't get the last word, because they couldn't kill his pure energy. And aren't we all just energy. E=mc². At the partcle level, it's all energy, we just look solid because all the particles are so close together. And maybe when we die, our energy goes back into the universal, and maybe somehow our personal attributes are stamped on it somehow.
Just some thoughts.