"You may have the best vegetables, you may be the most capable cook, but, if the copper vessel in which you prepare the vegetable soup is not tinned, the concretion you cook will be highly poisonous! So 'tin' your heart with truth, right conduct, peace and divine love; it will then become a vesssel fit for repeating holy name or symbols, meditation, religious vows, pilgrimage, ritualistic worship and the other dishes that you prepare in it."