The Puranas are derived from the same system as the epic poems, and carry out further the same ideas. Siva and Vischnu are almost the only gods who are worshipped, and they are worshipped with a sectarian zeal unknown to the epics. Most of the Puranas contain these five topics,--Creation, Destruction and Renovation, the Genealogy of the gods, Reigns of the Manus, and History of the Solar and Lunar races. Their philosophy of creation is derived from the Sánknya philosophy. Pantheism is one of their invariable characteristics, as they always identify God and Nature; and herein they differ from the system of Kapila. The form of the Puranas is always that of a dialogue. The Puranas are eighteen in number, and the contents of the whole are stated to be one million six hundred thousand lines.[91] The religion of the Hindoos at the present time is very different from that of the Vedas or Manu. Idolatry is universal, and every month has its special worship,--April, October, and January being most sacred. April begins the Hindoo year. During this sacred month bands of singers go from house to house, early in the morning, singing hymns to the gods. On the 1st of April Hindoos of all castes dedicate pitchers to the shades of their ancestors. The girls bring flowers with which to worship little ponds of water dedicated to Siva. Women adore the river Ganges, bathing in it and offering it flowers. They also walk in procession round the banyan or sacred tree. Then they worship the cow, pouring water on her feet and putting oil on her forehead. Sometimes they take a vow to feed some particular Brahman luxuriously during the whole month. They bathe their idols with religious care every day and offer them food. This lasts during April and then stops. In May the women of India worship a goddess friendly to little babies, named Shus-ty. They bring the infants to be blessed by some venerable woman before the image of the goddess, whose messenger is a cat. Social parties are also given on these occasions, although the lower castes are kept distinct at four separate tables. The women also, not being allowed to meet with the men at such times, have a separate entertainment by themselves.