इन्द्रियाणामथोद्धृत्य मनसैव निषेधयेत् । यथा लोहेन लोहं च घर्षितं तीक्ष्णतां व्रजेत्
indriyāṇāmathoddhṛtya manasaiva niṣedhayet | yathā lohena lohaṃ ca gharṣitaṃ tīkṣṇatāṃ vrajet
Sau khi chế ngự các căn, hãy tự dùng tâm mà ngăn giữ chúng—như sắt được mài với sắt thì trở nên sắc bén.
Skanda (deduced from Nāgarakhaṇḍa–Māhātmya didactic narration style)
Type: kshetra
Scene: A sādhaka seated near a tīrtha, eyes lowered, with senses depicted as restless horses being reined in by the mind; beside him, two iron blades being rubbed, emitting a subtle gleam to symbolize sharpening through practice.
Self-mastery is achieved by using the mind to restrain the senses, strengthening discipline through repeated practice.
No site is mentioned; the verse teaches yogic method within a tīrtha-māhātmya chapter.
A sādhanā instruction is given: withdraw and restrain the senses through mental control.