What once existed is now shards of reality, floating in the sea of conflict...
The Truth Mage, Veracit, feared to utilize the Observer's Paradox, uncomfortable with their perilous effect on reality.
It's so cute!
Wait, why is it glowing?
A magical pair of glasses once allowed the sharpest of minds to perceive the physical world around him. His cutting insight, throwing light on the darkest of secrets, is now housed within the spectacles.
The religion believes in reincarnation, but that you will be reborn in the past. People of today are those re-born of tomorrow, with some discarded as trash. The most pure will be eventually reborn in the mythical paradise-like past, where people lived for hundreds, or maybe even thousands of years.
This goes nicely with beliefs into foresight (you know a little about the future because you have been there), but also to many complaints of how things are going always from bad to worse.