the world consists of a multiplicity of separate objects in a framework of time, space, and causality because these are the conditions of perception. In a word, the mind looks at unity and sees diversity; it looks at what is timeless and reports transience. And in fact the percepts of its experience are diverse and transient; on this level of experience, separateness is real. Our mistake is in taking this for ultimate reality, like the dreamer thinking that nothing is real except his dream.