The interpretation of these fire-customs as charms for making sunshine is confirmed by a parallel custom observed by the Hindoos of Southern India at the Pongol or Feast of Ingathering. The festival is celebrated in the early part of January, when, according to Hindoo astrologers, the sun enters the tropic of Capricorn, and the chief event of the festival coincides with the passage of the sun. For some days previously the boys gather heaps of sticks, straw, dead leaves, and everything that will burn. On the morning of the first day of the festival the heaps are fired. Every street and lane has its bonfire. The young folk leap over the fire or pile on fresh fuel. This fire is an offering to Sûrya, the sun-god, or to Agni, the deity of fire; it “wakes him from his sleep, calling on him again to gladden the earth with his light and heat.”(735) To say that the fires awaken the sun-god from his sleep is only a metaphorical and perhaps modernised expression of the belief that they actually help to rekindle the sun’s light and heat. The custom of leaping over the fire and driving cattle through it may be intended, on the one hand, to secure for man and beast a share of the vital energy of the sun, and, on the other hand, to purify them from all evil influences; for to the primitive mind fire is the most powerful of all purificatory agents. The latter idea is obviously uppermost in the minds of Greek women when they leap over the midsummer fire, saying, “I leave my sins behind me.” So in Yucatan at a New Year’s festival the people used to light a huge bonfire and pass through it, in the belief that this was a means of ridding themselves of their troubles.(736) The custom of driving cattle through a fire is not confined to Europe. At certain times the Hottentots make a fire of chips, dry branches, and green twigs, so as to raise a great smoke. Through this fire they drive their sheep, dragging them through by force, if necessary. If the sheep make their escape without passing through the fire, it is reckoned a heavy disgrace and a very bad omen. But if they pass readily through or over the fire, the joy of the Hottentots is indescribable.(737)