the meaning of immortality

Hi there,

I was wondering if any would like to contribute and try in establishing, if we are indeed immortal beings or perhaps not. In our existence, we have come to bring into our lifestyle many teachings of others but yet fully endorse our own personal experience of life. Is reason enough to create an idea of immortality? Or do we first have to die to see whether we continue existing? Also is reality or the idea of it, an important part of a process of a understanding?