The Quest...

If it be asked, "What is the nature of mystical experience?" the answer given very tersely is, "It is experience which gives to the individual a slant on the universal, like the heart's delight in the brightness of a May morning in England, or the joy of a mother in her newborn child, in the sweetness of deep friendship, in the lilt of great poetry. It is the language of the arts, which if approached only by intellectual ways yields only half its content. Whoever comes eventually to mystical experience of the reality of his own Higher Self will recognize the infinite number of ways in which nature throughout life is beckoning him. The higher mystical experience is not a sport of nature, a freak phenomenon. It is the continuation of a sequence the beginning and end of which are as vast as the beginning and end of the great cycle of life in all the worlds. No man can measure it."

— Notebooks Category 1: Overview of the Quest > Chapter 1: What the Quest Is > # 63
Paul Brunton