Consider this...

"More than any time in history mankind faces a crossroads. One path leads to despair and utter hopelessness, the other to total extinction. Let us pray that we have the wisdom to choose correctly." - Woody Allen

This is a page of links to articles written in an attempt to explain how the natural world differs from our perception of it and why/how that is so. The articles, in logical order, are the following:

Reality and perception (1) — space, particles, cats and natural selection

Reality and perception (2) — perception = the five senses

Reality and perception (3) — space, particles and pizza

Where is perception? (Part 1)

Where is perception (Part 2)