Sri Saligrams is considered the direct symbol of Lord Vishnu, They are found only in Mukti chhetra and Damodar Kunda (north-west of Nepal). According to the religious text of Devi Bhagwate (and other scriptures) to kill demon Jalandhar Lord Vishnu have to destroy Sati Brindha\'s sati dharma. When he did that Sati Brindha gave four seeming desecrations to Lord Vishnu to become stone, grass, tree, plant. To wash away this reaction Lord Vishnu took four avatars (incarnations). He became stone (Sri Saligram) grass (kush) tree (Pipal) and plant (Tulsi). Since this time the Saligrams are considered to be most auspicious to behold and to worship. The worshipper knows no fear and by Sri Saligram\'s mercy the worshipper is blessed to attain all desirable things; worldly comforts, good wife, good sons, good health and wealth etc. It is all by the blessings of Lord Mahavishnu that His pastimes are being served. It is an excellent service for devotees of Lord Narayana.