A question may be asked regarding the mysticism of color and sound: Can we get our individual color or note? The answer is that in the first place it is not a matter of our own color being good for us. It is whether a number or color is in harmony with us or not that makes it good or not. In the second place, at every moment of our life our evolution changes. A person who was a thief yesterday is not a thief today. So also a given number or color belonging to us at one moment does not belong to us at another moment; it changes every moment. Therefore, to restrict oneself to a certain number or color is like tying one's feet with a chain, so that no more progress can take place. In the third place, were we to settle upon a particular number or color, we might induce a tendency to superstition in our nature, and this we must always avoid. We would always be thinking: What is the number of the house we are going to live in? What is the color of the room I shall occupy? What is the color of the dress? And so on! What would it be then if the person was obliged to live in that particular house, or was obliged to occupy that room in the hotel? If the number was inharmonious, he would think everything would go wrong while staying there!