Do those who suddenly die realize heaven the same as those who die slowly? Will we remember our life, will our experiences be saved? What is the purpose of God incarnating?
When the finite body dies, is that the end of our person, or do we continue on? Yes and no.
Did Jesus come back from the dead, or should we look deeper for the truth of resurrection?
I think that Christianity may have conflated Jesus's mystical experience of an ego death, perhaps at the time of his baptism when the "heavens opened," in which his individual psychological self "died" and he was was "reborn" of Spirit, or "raised up" (resurrected) to his identity in Christ consciousness (a consciousness of nondual union in God/Reality), with his biological death on the cross. These two deaths seem to have been conflated at some point, resulting in a supernatural conception of the resurrection.