Shaligram Shila are stones found in Nepal's Gandaki River. They are stones with solid structure. They are another form of Lord Vishnu found on earth. Shaligram Shila and Sudarshan Shaligram are a good combination along and they are worshiped as like Vishnu & his Sudarshan. Shaligram keeps all devils away and so is the persons trying to harm the worshipper have a very sad end. God Vishnu is easily pleased if someone Tulasi Leaves to Shaligram in worship of Shalagram Sila.