Maha Shivratri Festival is the grand night dedicated to worship Lord Shiva. There are different reasons why Lord Shiva is revered and adored by Hindus, and especially those who devote their lives to Lord Shiva. Lord Shiva on this night is worshipped with gratitude due to the following story. During the Samudra Manthan, a period of fights between gods and demons, it happened that a toxic poison came out from the ocean, and everyone was scared of this.
Lord Vishnu advised all gods to seek protection from Lord Shiva. Shiva out of compassion drank the poison and kept it in his throat with a snake tied to it. Wise men advised the gods to keep Lord Shiva awake during the night to avoid the poison harming him, so to keep Shiva awake there dances and music played by the gods. Shiva was so happy with the devotion that promised that whoever contemplated him on this day would also be blessed as the gods were on that day.