Imagine you are a photon.
You suddenly come into existence, and without the passing of any time, and without travelling any distance, you suddenly disappear again. Did you even exist? Well you must have done because an astrophotographer on planet Earth captured you on his camera after you had travelled 10 billion light years from the galaxy he was imaging. So you existed for 10 billion years and travelled for 10 billion light years when you felt that you had not existed at all.
How do you reconcile this?
You suddenly come into existence when one of 250 million spermatozoa, travelling a great distance relative to their dimensions, manage to break through the cell wall of a single ovum, which is ready to divide, and is consensually provided by a randomly selected partner. From then on, if you overcome the odds against survival, you mature and then decay at a startling rate. If you are lucky, and after a maximum of approximately 70 to 100 orbits of the planet Earth around the Sun, you cease to exist other than as brief living memories in other transient life forms, DNA shared by offspring and maintained archival information systems.
We are alive for the briefest of moments, and do not exist, before and after, forever. So taking the temporal wider view, did we really exist at all?
Without counseling, mysticism or subscribing to one of the many disparate religions – How do we reconcile this?
This is the same sense of scale that shows us we are effectively blind when it comes to the electromagnetic spectrum. The longest radio waves are a tiny fraction of an electron volt in energy, and ultra-high-energy gamma rays are over 10^13eV!!! What is the full range of photon energies our eyes can detect? One – yes that’s a single solitary 1eV of energy. We are almost competely blind to the EM spectrum.