Siddhi is a powerful spiritual gift transmitted from the state of the Siddhi Giver that allows the Siddhi is a powerful spiritual gift transmitted from the state of the Siddhi Giver that allows the recipient to experience an enlightened state of being such as joy/delight, compassion, love, calm, and or connection. to experience an enlightened state of being such as joy/delight, compassion, love, calm, and or connection.