In the age of science and technology we have gone far in exploring our external world. Now quantum science is revealing strange phenomena in the subatomic world, where both the behavior and location of a quantum particle is influenced by the observer. That both space and time and the solidity of the physical world are illusions in the way we understand them. Space and time are not fixed quantities, rather these are qualities that are interchangeable and very elastic. Time is simultaneous and all that is, was or ever will be is ever present Now.
Time only appears linear, due to our brain-memory and neurological connections.
You are the center of your experiential universe, you cannot understand your experience, unless you stand objectively apart from it. We cannot accept some personal tragedy or deep disappointments or separation or personal affront so easily. Because for most of us it is difficult to stand apart from our own beliefs and emotions.