My grandma passed away when I was only 3 and because of that I constantly felt lonely growing up. I still find myself feeling lonely from time to time. When I was a teenager I learned about reincarnation in school and since then have been fascinated by the idea of coming back to life in another body in another place and time and hope to meet the reincarnation of my grandma. However, I worry sometimes that this belief is all in my head and that actually when we die we become nothing. How can be sure there is such a thing as reincarnation?