The four āśramas — specifically for the brāhmaṇa — are declared by śruti itself. The mention of yajña for the gods connects this to the three debts. Svāśramaṃ dharmamācaran — practicing the dharma of one’s own āśrama — is the foundation. This verse establishes that yoga is built upon, not opposed to, the varṇāśrama dharma system.