I am sure of my own existance as I do have a sense of self. But the question that I am asking is a rather vague one. Do you exist? If the answer is no then the very purpose of asking questions from the non existent is useless. Even all the solutions you give to me are useless. Even the scriptures like the Bible, the Gita also are of no help(afterall even they do not exist.) What if I am seeing a virtual movie, in which all you people are virtual softwares. All the things that I believe in, all the past that has been told to me, even my own body, everything is just an illusion. I am talking of a supermatrix in which only one man is trapped in an illusion and everything else in the matrix is fake. Now the question is, "Is there any way to confirm your existance?"