Beauty is the convenient and traditional name of something which art and nature share, and which gives a fairly clear sense to the idea of quality of experience and change of consciousness. I am looking out of my window in an anxious and resentful state of mind, oblivious of my surroundings, brooding perhaps on some damage done to my prestige. Then suddenly I observe a hovering kestrel. In a moment everything is altered. The brooding self with its hurt vanity has disappeared. There is nothing now but kestrel. And when I return to thinking of the other matter it seems less important. And of course this is something which we may also do deliberately: give attention to nature in order to clear our minds of selfish care.