But when it is necessary to cut the hair, precautions are taken to lessen the dangers which are supposed to attend the operation. Amongst the Maoris many spells were uttered at hair-cutting; one, for example, was spoken to consecrate the obsidian knife with which the hair was cut; another was pronounced to avert the thunder and lightning which hair-cutting was believed to cause.(693) “He who has had his hair cut is in the immediate charge of the Atua (spirit); he is removed from the contact and society of his family and his tribe; he dare not touch his food himself; it is put into his mouth by another person; nor can he for some days resume his accustomed occupations or associate with his fellow men.”(694) The person who cuts the hair is also tabooed; his hands having been in contact with a sacred head, he may not touch food with them or engage in any other employment; he is fed by another person with food cooked over a sacred fire. He cannot be released from the taboo before the following day, when he rubs his hands with potato or fern root which has been cooked on a sacred fire; and this food having been taken to the head of the family in the female line and eaten by her, his hands are freed from the taboo. In some parts of New Zealand the most sacred day of the year was that appointed for hair-cutting; the people assembled in large numbers on that day from all the neighbourhood.(695) It is an affair of state when the king of Cambodia’s hair is cut. The priests place on the barber’s fingers certain old rings set with large stones, which are supposed to contain spirits favourable to the kings, and during the operation the Brahmans keep up a noisy music to drive away the evil spirits.(696) The hair and nails of the Mikado could only be cut while he was asleep,(697) perhaps because his soul being then absent from his body, there was less chance of injuring it with the shears.