When there was no possibility of us to existed, then there was no time, no space. But geometry made everything. With the help of discrete length the first space was formed by Planck's length and then cam Casimir effect. This effect created the time. This phase was such a phase when actually when Space and Time was separate entity and there was no connection with each other. How was this phase of this invisible universe before coming into visibility for human being? This mysterious and incredible phenomenon really the reality. Let us delve.