The inner knowledge is beyond words, and to try to put it into words is like trying to put the sea into a bottle. It is impossible to put it into words. It is something which we can only realize of ourselves, and then only when we have tuned our heart to the proper pitch. How can anybody explain what a high note means? One cannot explain it; we must sing ourselves and find out what a high note is; when we produce it ourselves we know what it means. Thus inner knowledge should be acquired by the tuning of the heart, in order that the heart itself knows what it is.