The post-Vedic texts use the term as a form of self-imposed restrictions on food and behavior, sometimes with a vow. The concept evolves as a form of religious votive rite, personalized and interiorized, one that does not need a public ceremony or a private one, but that is privately observed. Its meaning retains a sense of personal sacrifice (fast, or restricted diet), in exchange for hope, accompanied with a prayer to a personally defined or cherished divinity, and propelled by the wish for the well being of one's loved ones. The Grihya-sutras (domestic life manuals), the Puranas and the epics describe the practice particularly in the context of Vedic students, brahmins, and women, as "devotion, solemn vow, holy practice, resolve, dedication".