Upanayana

The ṣoḍaśa-saṃskāras (sixteen sacraments) cover the arc of a Hindu life from conception to cremation. They are described in the Gṛhya Sūtras (Āśvalāyana, Pāraskara, Āpastamba), the Manu Smṛti, and the Yājñavalkya Smṛti. The number 16 is the most-accepted count, though some smṛtis list 12, 25, or even 40 saṃskāras.

Each saṃskāra has a specific timing, a specific purpose, a specific ritual procedure (vidhi), and specific Vedic mantras. Together they enact the principle that life is not just a biological progression — every threshold is a sacred one, meriting consecration. The sanskaras embody the Hindu view that the body is a temple and life is a yajna.

In modern practice many sanskaras have lapsed or been compressed — Garbhādhāna, Puṃsavana, Sīmantonnayana, Niṣkramaṇa, Vidyārambha, and the later student-life sanskaras (Vedārambha, Keśānta, Samāvartana) are rarely performed in full. The core five — Nāmakaraṇa, Annaprāśana, Cūḍākaraṇa, Upanayana (in dvija families), Vivāha — are still widely observed across most Hindu families. Antyeṣṭi remains universal.