Summing up, Buddhism is an organized practical system designed to reveal to us the what is what. Once we have seen thing as they really are, we no longer need anyone to teach or guide us. We can carry on practising by ourselves. One progresses along the Ariyan Path just as rapidly as one eliminates the defilements and gives up inappropriate action. Ultimately one will attain to the best thing possible for a human beign, what we call the Fruit of the Path, Nirvana. This one can do by oneself simply by means of coming to know the ultimate sense of the what is what.