I've been summoned! :)

The meaning in my comment of illusion is the total meaning which includes a kind of veil of dishonesty as well as the improper perception of life. We're born, are raised, work an adult life, have kids, and die all by failing to perceive most of the things going on in our bodies. We get signs through our nerves of certain things going on if they are important and we ignore all the other stuff. There are huge numbers of things going on every second that we are unaware of. We have these other lives that are metaphysical that exist outside of ourbodies and are dependant upon others to prop up their significance, and they are illusions because they have zero cause or effect on our biology directly; unless sex or other biology is involved but these things are detached from our true biological selves. We're here in this world and in this time, so we must take responsibility for OUR ACTIONS; how can we do so unless we are totally aware of everything going on?

Plus when you look at how old the universe is and contrast that number to the small number of our years of life we are invisible to the whole. Watts touches on this quite a bit. I would recommend looking at The Book Against the Taboo of Knowing Who You Are (I think that's the title?) but it's a great read and it examines the physical nature of human life. Watts explains how we are completely dependant upon our world and oblivious to that connection as we are unaware of most other things going on. Our perception of ourselves is a body when in fact there are so many things that compile who we are that we deny. Physically a better description of a human being would be: a mobile corral reef that breathes air and lives outside of liquid water. Sounds really nuts when you hear that or say it out loud but it's a better physical description of a person than "bipedal organism" if we do not include the knowledge of our being featherless because bipedal organisms also could apply to a chicken.