We filter out life constantly, so much so that often we don’t see the reality of what is there. Where does the filtering come from? It's our conditioning, our culture, our programming.  It's the way we were taught to see things and to experience life. Even the words we choose function as filters. There’s another demon doing the filtering, distorting and destroying true perception, haunting us with fear.  It's the one called attachment. That filter is the root of all suffering.