when people die they go to heaven when they do that they pick what challenges they want to over come for their next life and then when the time comes they get reborn...the challenges are neccesary to get closer to your complete being.
Life does not work that way. Reincarnation like evolution are not real. When you die you know nothing, the passing of time is a moment to you. When Jesus returns to claim His own then the dead in Christ shall rise.