śaktayaḥ sarva-bhāvānām
acintya-jñāna-gocarāḥ
yato 'to brahmaṇas tās tu
sargādyā bhāva-śaktayaḥ
bhavanti tapatāṁ śreṣṭha
pāvakasya yathoṣṇatā
śaktayaḥ - energies; sarva-bhāvānām - of all types of creation; acintya - inconceivable; jñāna-gocarāḥ - by the range of man's knowledge; yataḥ - from whom; ataḥ - therefore; brahmaṇaḥ - from the Absolute Truth; tāḥ - those; tu - but; sarga-ādyāḥ - bringing about creation, maintenance and annihilation; bhāva-śaktayaḥ - the creative energies; bhavanti - are; tapatām - of all the ascetics; śreṣṭha - O chief; pāvakasya - of fire; yathā - as; uṣṇatā - heat.
This is also a quotation from the Viṣṇu Purāṇa (1.3.2).