Shivratri fast is kept every month on the day of Chaturdashi in Krishna Paksha. Lord Shiva is worshipped on this day and a fast is kept. Lord Shiva is also known as Bholenath. Lord Shiva is very easily impressed by just a little worship. A person should not consume food on the day of Shivratri. At night, clean clothes should be worn. A person should sit in a clean place and worship Lord Shiva. Chanting his mantras is very fruitful.