Santhara or Sallekhana is a vow observed by Jain ascetics and devout householders, involving voluntary fasting unto death. It is undertaken towards the end of one's life when death is imminent due to old age, illness, or calamity, and the person has attained perfect spiritual composure. It is seen as a highly respected means of purifying the soul and achieving liberation by shedding the body after all worldly activities have ceased.