Vānaprastha-vidhi and Sannyāsa-dharma: Austerity, Detachment, and the Paramahaṁsa Ideal
भिक्षोर्धर्म: शमोऽहिंसा तप ईक्षा वनौकस: । गृहिणो भूतरक्षेज्या द्विजस्याचार्यसेवनम् ॥ ४२ ॥
bhikṣor dharmaḥ śamo ’hiṁsā tapa īkṣā vanaukasaḥ gṛhiṇo bhūta-rakṣejyā dvijasyācārya-sevanam
The main religious duties of a sannyāsī are equanimity and nonviolence, whereas for the vānaprastha austerity and philosophical understanding of the difference between the body and soul are prominent. The main duties of a householder are to give shelter to all living entities and perform sacrifices, and the brahmacārī is mainly engaged in serving the spiritual master.
The brahmacārī lives in the āśrama of the spiritual master and personally assists the ācārya. Householders generally are entrusted with the performance of sacrifice and Deity worship and should provide maintenance for all living entities. The vānaprastha must clearly understand the difference between body and soul in order to maintain his status of renunciation, and he should also perform austerities. The sannyāsī should fully absorb his body, mind and words in self-realization. Having thus achieved equanimity of mind, he is the best well-wisher of all living entities.
This verse summarizes key duties: a mendicant cultivates tranquility and nonviolence; a forest-dweller practices austerity and contemplation; a householder protects beings and performs worship/sacrifice; and a twice-born student serves the ācārya.
In the Uddhava-gītā section, Kṛṣṇa gives Uddhava practical guidance for living dharma and progressing spiritually, especially as Kṛṣṇa’s visible pastimes were concluding and devotees needed clear principles for steady practice.
Adopt the essence suited to your situation: practice nonviolence and inner calm, add disciplined austerity and reflection, protect and support others through responsible livelihood, and keep a mood of service to genuine spiritual guidance and learning.