How can any thing ever really and truly present itself to us, since its synthesis is never a completed process, and since I can always expect to see it break down and fall to the status of a mere illusion? Yet there is something and not nothing. There is a determinate reality, at least at a certain degree of relativity. Even if in the last resort I have no absolute knowledge of this stone, the fact remains that the perceived stone is there, that I recognise it, that I have named it and that we agree on a certain number of statements about it.
M. Merleau-Ponty, The Phenomenology of Perception
"Reality" is what we take to be true. What we take to be true is what we believe. What we believe is based on our perceptions. What we percieve depends on what we look for. What we look for depends on what we think. What we think depends on what we perceive. What we perceive determines what we believe. What we believe determines what we take to be true. What we take to be true is our reality.
Gary Zukav, The Dancing Wu-Li Masters