Reality reflects your beliefs…
Let's talk about the Observer Effect. Quantum physicists studied two particles' behavior, expecting them to follow a predetermined path, only to discover that the particles responded to the observer, and its path was determined accordingly.
What if the question of whether or not God exists functions like these particles? One observer knows there is a God, the other observer knows that there isn't. Who is right? Both.
Matter responds to our observation, our beliefs, our intentions. Someone who believes in God will experience miracles and divine intervention, and someone who is an Atheist will experience logic and reason, a reality grounded in practicality and function. Different facets of Ultimate Reality, equally valid.
I do believe there is an Intelligent Designer behind the Big Bang, the particles and the Universe, a designer that made this kind of creation-by-belief possible. It is the Ultimate free will: we get to experience reality as we wish to see it.
One can choose a life of optimism, and reality will mirror hopeful experiences, or one can choose despair, and will experience a reality that proves mistrust is warranted.
ALL reality contains within it the multitudes, the many possibilities as parallel universes, and we can cross over into a different reality---a different belief or choice---at any time. We can instantly choose a different experience, that's the beauty of it.
I do believe there are Higher Paths, ones that reflect a Higher level of consciousness and yields a more fulfilled and aligned life, just as I believe there are lower paths, lower consciousness that yield denser, more painful experiences. All levels serve an essential function, and we ascend the levels the more we learn. An Atheist can exist at any level, as can a believer in God. History has proven this.
So, as to the question, which is Ultimate truth? The answer: you decide.
What kind of life do you want to live? Who do you want to be? What beliefs bring you peace and fulfillment? Make you a better person? Which choices bring you closer to Love?
Respect others’ choices. We are all multifaceted expressions of the Multiverse.