What about reincarnation?

If the idea of reincarnation seems to help you feel more peaceful, then use it. If it seems to increase your fear level don't use it.

How can you just decide which concepts to use and which ones to discard, you may wonder. What about truth? You're really asking if reincarnation really happens, aren't you?

Well, remember this: from a non-dualistic perspective Ultimate Truth does not pertain to this world and our human experience. All that we call truth is relative truth. Do I think that some humans believe they've been here before? Sure. Do I think that some humans think they're here now? Yep. Same mistake. There is no world.

Back to the suggestion of adopting beliefs or discarding them. That's what you're doing already. I'm just shining a glaringly white light of honesty on the practice.