Terry you have put a lot of thought into this bold approach to the subject of truth and it brings back bitter-sweet memories.
Truth is absolute but as humans we exist at a subjective level. This is because we are emotional creatures and seek comfort and security. The real world cannot offer these things in a sustainable way because we run out of time and die. So people have a tendency to create a more acceptable 'spiritual' world in their imagination. This is understandable.
Reality is harsh and most people seek a more benign alternative, an invisible friend. It's a survival technique that can even appears to offer the opportunity or surviving death. The illusion has failed to work for me and many others. I can handle the truth - but living without the illusion that there no one is guiding our lives, was not my choice.
I have other illusions that I maintain because I too need a relief from the relentless onslaught of reality. I do not believe there is a Holy grail or ultimate salvation. To those often sweet people on this forum who believe there is, I salute you.
Each to their own and may your gods or illusions go with you - it's cold outside