Many have told me, "Eastern philosophy interests us very much, but the conception of Nirvana is very frightening." And I have answered, "Yes, it is frightening. Truth is just the same: truth is also frightening, but truth is reality." Besides man is so fond of illusion that he so to speak revels in it. If someone awakens a man who is having an interesting dream, that man will say, "O let me sleep on!" He likes looking at his dream; he does not want to wake up to reality because reality is not as interesting as the dream. Thus among the seekers after truth we find only one in a thousand who is courageous enough to look at the immensity of truth. But there are many who take an interest in illusion, and they are inclined, out of curiosity, to look at mental illusions, because these are different from the illusion of the physical life. And they are apt to call this mysticism, but it is not mysticism.