Am I? Am I not? What am I? How am I? This sentient being—where did it come from? And where will it go?
These kind of questions always remind me of the smackdown the Buddha gave the Ven. Mālunkyaputta in MN63:
[These views] aren’t beneficial or relevant to the fundamentals of the spiritual life. They don’t lead to disillusionment, dispassion, cessation, peace, insight, awakening, and extinguishment.
When there are any of these views there is rebirth, there is old age, there is death, and there is sorrow, lamentation, pain, sadness, and distress. And it is the defeat of these things in this very life that I advocate.