श्रीभगवानुवाच । वनं विविक्षुः पुत्रेषु भार्यां न्यस्य सहैव वा । वन एव वसेच्छान्तस्तृतीयं भागमायुषः ॥१८-१॥
śrī-bhagavān uvāca | vanaṁ vivikṣuḥ putreṣu bhāryāṁ nyasya sahaiva vā | vana eva vasec chāntas tṛtīyaṁ bhāgam āyuṣaḥ ||18-1||
The Blessed Lord said: One desiring to enter the forest should either entrust his wife to their sons or take her along, and should dwell peacefully in the forest for the third portion of life.
Modern Reflection
Chapter eighteen opens with Krishna resuming direct speech after the seventeenth chapter's long householder material, and the very first verse names a specific practical choice: a couple entering the vanaprastha stage together, or a wife remaining with capable sons while the husband withdraws alone, both presented as legitimate options rather than a single fixed rule. A retired couple in a small ashram community near Rishikesh, having spent their working years raising children and running a business in Delhi, chose the shared path this verse permits, moving together into a simpler, more contemplative life once their children were established, rather than separating. Tṛtīyaṁ bhāgam āyuṣaḥ, "the third portion of life," assumes a fourfold division of a full human lifespan, student, householder, forest-dweller, renunciant, and names this specific transition as belonging to a person's later, though not yet final, years, a deliberate, gradual stepping-back from full worldly engagement rather than an abrupt severance. Śāntaḥ, peacefully, sets the tone for the entire chapter that follows: whatever specific austerities are about to be described, the underlying disposition sought is calm rather than anxious withdrawal.