Sannyasa (Sanskrit: संन्यास; IAST: Saṃnyāsa) is the life stage of renunciation within the Hindu philosophy of four age-based life stages known as ashramas), with the first three being Brahmacharya (bachelor student), Grihastha (householder) and Vanaprastha (forest dweller, retired).[1] Sannyasa is traditionally conceptualized for men in late years of their life, but young brahmacharis have had the choice to skip the householder and retirement stages, renounce worldly and materialistic pursuits and dedicate their lives to spiritual pursuits.

https://en.wikipedia.org/wiki/Sannyasa