The past, whether ancient or not; whether drama-filled and catastrophic, whether glorious, or whether of the rather mundane, peaceful type is DEAD and gone. Let it go, say I. It's that simple. Not very exotic or entertaining or lucrative, maybe. But very liberating, imo and experience. Anything else, besides truly honoring the past by simply letting go of it (digging into the specifics and the [over] analyzing of it NOT required), to me borders on an unwholesome, morbid curiosity if not obsession. Been there, done that. No more, thank you.
The present moment is sufficient unto itself, is entirely whole, and lacks nothing -- if it is only recognized, allowed, and accepted.
What you experienced in the past is affecting you now, in brain changes, in epigenetic changes, so the past is certainly not dead and gone, in that it influences us now. By going over the past, psychotherapeutically, those influences can be undone.