Why do people in India float lanterns on the Ganges?

People in India float lanterns on the Ganges River as part of various cultural and religious ceremonies, particularly during festivals like Diwali and Makar Sankranti. This practice symbolizes the illumination of darkness and the guiding of spirits, representing hope, peace, and remembrance for loved ones who have passed away. The act of releasing lanterns also reflects a deep spiritual connection to the river, which is considered sacred in Hinduism. Overall, it serves as a gesture of devotion, prayer, and celebration.