Prayopavesa

Prayopavesa is a Hindu ritual practice of voluntarily and gradually fasting to death, undertaken by individuals who have no remaining worldly desires, responsibilities, or ambitions. It is permitted under specific conditions, such as terminal illness or extreme disability, and is typically a gradual process that allows for preparation by the individual and the community. The practice is associated with serenity and is distinct from suicide, which is often driven by negative emotions.

A Dharmic Conclusion to Life - https://www.hinduismtoday.com/opinion/a-dharmic-conclusion-to-life/ - What I learned from my father’s gracious end to life through prayopavesha, fasting to death

• he often mentioned the desire for an anayasena maranam. Literally meaning “death without pain,” these are the first words of a shloka often attributed to Drona’s plea to Lord Siva just before Drona’s demise in the Mahabharatha war: “Death without pain; life without struggle; unshakable devotion to You; kindly grant me, Siva.”

Via: Divya Venkat