We exist within the limitations of space and time. While we may define the entity space in terms of 3-D co-ordinates or even fourth dimensional space as in some higher sciences, we are however confined within the boundaries of the 3-D coordinate space. I am not quite sure if 4-D space , the same as virtual reality in terms of cyber space ? whatsoever, we are incapable of conceptualizing it by physical touch and actually being in it .

Though present day science defines time in terms of relativistic theories, for such layman as ourselves, we visualize time as some sort of a work flow surging forward , that is, we moving forward with time , time progresses , we grow and move on , we cannot possibly get back what we have lost on the progression of the time scale. Simply speaking, we quite incapable of backtracking except in our memoirs on the parameter time .

And life ? It is , I believe an aggregation of our growth within those boundaries of space and time . We live on this beautiful earth , once again a space and are guided by the principles of our home planet within the plenoptics of time . We are all inherently accustomed to seeing the sunrise in the eastern horizon and the sun set in the west, we are accustomed to seeing our shadows on the earth beneath our feet , cast by the sun, grow or shrink in size with the various inclinations of the sun throughout the day , once again the time factor. And at the end of the day, gazing at the endless expanse of a star studded gorgeous sky above our heads, don’t we all feel the infiniteness  of this void , something very difficult to conceptualize?  

Though some people say that when we all die , we are not lost, in the sense that we are nothing but an integral part of this massive energy of the cosmos, being thrust in this fierce, fine world of ours from time to time to encounter this enigma named life, as we stare spell bound at the nocturnal beau of the skies, our limitations of the mind frame, within the parameters of space and time, make us all but realize “ WE CAN’T BE WHAT 'WE' ARE “ .  We might be , as many believe , a part of the cosmos , a part of indestructible energy , yet as long as we live , we can never be this hypothetical “ we “.