"ओँ तत्सत्" मन्त्र माहात्म्यम्The greatness of the mantra oṁ tat sat
Verse 158
पुरः प्रदेशे देहे वा लिखित्वा धारयेदिमम् । गेहस्तस्य महातीर्थं देहः पुण्यमयो भवेत् ॥ १५८ ॥
puraḥ pradēśē dēhē vā likhitvā dhārayēdimam | gēhastasya mahātīrthaṁ dēhaḥ puṇyamayō bhavēt || 158 ||
Translation
If he writes it on a place before him or on his body and keeps it there, his house becomes a great tīrtha and his body becomes full of merit.
Word by word
- puraḥ
- before him
- pradēśē
- on a place
- dēhē
- on the body
- vā
- or
- likhitvā
- writing
- dhārayēd
- (dhārayet) he keeps
- imam
- this
- gēhas
- (gehaḥ) the house
- tasya
- his
- mahā
- great
- tīrthaṁ
- a tīrtha
- dēhaḥ
- the body
- puṇya
- of merit
- mayō
- (mayaḥ) full
- bhavēt
- becomes
Meaning
The commentary specifies "imam" as this mantra, oṁ tat sat. Merely keeping it in writing sanctifies, as the name of a deity does.

Commentary
Hariharānanda Bhāratī’s Sanskrit commentary, translated
Imam: this, the mantra "oṁ tat sat" (verses 158 to 160).