अस्यावश्यकत्वे हेतुःWhy they are needed
Verse 10
कलौ तु परमेशानि तैरेव मनुभिर्नराः । मायाद्यैः सर्वकर्माणि कुर्युः शङ्करशासनात् ॥ १० ॥
kalau tu paramēśāni tairēva manubhirnarāḥ | māyādyaiḥ sarvakarmāṇi kuryuḥ śaṅkaraśāsanāt || 10 ||
Translation
But in the Kali age, Supreme Goddess, by the command of Śaṅkara men should perform every rite with those same mantras, beginning with māyā.
Word by word
- kalau
- in the Kali age
- tu
- but
- paramēśāni
- O Supreme Goddess
- taiḥ
- (taiḥ) with those
- ēva
- same
- manubhiḥ
- (manubhiḥ) mantras
- narāḥ
- men
- māyā
- māyā, the seed hrīṁ
- ādyaiḥ
- (ādyaiḥ) beginning with
- sarva
- all
- karmāṇi
- rites
- kuryuḥ
- should perform
- śaṅkara
- of Śaṅkara
- śāsanāt
- by the command
Meaning
This is the single change the Tantra makes to the mantras of the rites in the Kali age: the same mantras are used, but each begins with the seed of māyā, hrīṁ, in place of oṁ. The commentary: "māyādyaiḥ, with those mantras whose first seed is māyā, that is hrīṁ". Throughout this chapter, therefore, the Vedic formulas of the sacraments appear with hrīṁ before them: "hrīṁ bhūr bhuvaḥ svaḥ" for "oṁ bhūr bhuvaḥ svaḥ", and so on. Hrīṁ is the seed of Mahāmāyā, the Goddess as the power that both veils and manifests the world; to begin with it is to place the rite under her.

Commentary
Hariharānanda Bhāratī’s Sanskrit commentary, translated
"Māyādyaiḥ": with those mantras whose first seed is māyā, that is hrīṁ.