The material world about is visible to us. What we can see with our own eyes, touch with our own hands, we can verify. But the invisible world, the reality beyond the present reality, which we cannot physically touch or see – how to verify that? There is no way, scientifically or intellectually, that we can come by such knowledge, for it is knowledge of another order. No one can be argued into a knowledge of God. Truth remains a revelation. No one can be talked into falling in love. Love remains an experience. And in the silence of meditation there will come a knowledge that has nothing to do with questionnaires or encyclopedias, a knowledge that cannot be proved scientifically or even pinned down into words – and yet it is a knowledge of unshaken and unshakable surety.