I have a very solid idea.. that is incredibly hard to explain in words. I've had some ER trips from taking too many psychedelics and losing my mind, but they always result in me visiting the same place, some kind of 'spirit dimension' made out of pure consciousness, which I believe reality is composed out of. We are more or less just a reality confined within a reality, and separation is an illusion created by our brain, which in itself is a hallucination from the conscious energy of reality.
My consistent exposure to realms made out of 'faces' or memories shows me that the reality we see is not the place we are actually situated within, it is like our senses are a book we are reading, it's giving us an impression of what reality could be like, but you'll never know what the author of that book was really thinking when he wrote it all down. Our senses and beliefs are all a series of patterns that keep us alive, with no relevancy to what it actually is we are living within. We're machines meant to have sex, reproduce, for no meaning at all. "Meaning" and transference of consciousness has no existence outside of the minds of humans, it is a concept only relevant to us. Existence as a whole cannot be comprehended if we are a microcosm of it living in a self-constructed simulation matrix.
Whatever happens to us when we die is something utterly and completely incomprehensible and even asking the question is pointless, the very concept of existence and the worry of death is fabricated by our minds, death and life is an illusion. The question of 'what happens after we die' is very much the same as the question of 'what does the outside of my brain look like?'. You'd first need to understand what creates sensory perception, and that's not a question that can be asked, only the being experiencing qualia can answer that, and then that answer would be processed within the self-contained matrix of another conscious being, thus no actual truth would be transferred, there is no truths or falsehoods, just subjective sensory perception.
When you die, there is no more 'you'. Just reality. You were always part of reality forever, so 'you' will never be lost when you die. You conjoin with all things that ever were. I remember that feeling many times, seeing my own body torn into massive infinitely scaling structures of pure being. My memories merged with all things into a pure state of one conjoined sense, and this was all happening only within the confines of my brain. I think something similar happens energetically, but with the rest of the universe. That scares me a little bit, but I think fear becomes a very small and pointless thing once full assimilation with the rest of reality occurs.
In the end, the only correct answer is the one that makes you the happiest. The only wrong thing to do is to hurt others. In my mind life is not as precious as others think, we are essentially victims to life, we should just be glad that the ever spinning wheels of change will one day take us somewhere better.