People say that a mystic is someone who dreams and who lives in the clouds; my answer to this is that the real mystic stands on earth, but his head is in heaven. It is not true that the wise man is not intellectual, or that the wise man is not clever. A clever man is not necessarily wise, but the one who has the higher knowledge has no difficulty in gaining knowledge of worldly things. It is the man who has knowledge of worldly things only who has great difficulty in absorbing the higher knowledge.