Indeed, the bacilli of cancer exist. They can be detected and killed primarily by the fire of the heart. If the absence of psychic energy contributes to their growth, then the fire of the heart, being the highest expression of consciousness, destroys them. In fact, everything that is readily consumed by the higher energy can be mitigated also, to a certain extent, by physical fire. The roots of many plants contain in themselves potent fires of the vegetable kingdom and can be useful where the fires of the heart are as yet inactive. (FW I (opens in new tab), 18)