यथायथा तपोवृद्धिस्तस्याः सञ्जायते द्विजाः । तथा रूपं च कांतिश्च शरीरे प्रतिवर्धते
yathāyathā tapovṛddhistasyāḥ sañjāyate dvijāḥ | tathā rūpaṃ ca kāṃtiśca śarīre prativardhate
โอ้ท่านผู้เกิดสองครั้งทั้งหลาย! เมื่อใดตบะของนางเพิ่มพูนยิ่งขึ้น เมื่อนั้นรูปโฉมและรัศมีในกายของนางก็ยิ่งเจริญทวีขึ้นเช่นกัน
Sūta (deduced from adhyāya context)
Type: peak
Listener: Dvijāḥ (explicitly addressed: ‘O twice-born ones’)
Scene: The maiden’s body subtly transforms: a luminous aura intensifies, skin gleams, eyes shine; the forested peak seems to brighten around her, suggesting tapas-tejas affecting the environment.
Tapas refines the person; spiritual discipline is portrayed as producing inner and outer luminosity (kānti).
This verse describes the effect of tapas within the ongoing tīrtha-narrative; it does not name a particular tīrtha by itself.
No specific rite is listed; the emphasis is on sustained tapas/vow-observance as a dharmic practice.