Mahānirvāṇa Tantra 4.16

Translation

For the sake of your worshippers, for the good of the worlds, and to destroy the demons, you take bodies of many kinds.

Word by word

upāsakānāṁ

of the worshippers

kāryārthaṁ

for the sake

śrēyasē

for the good

jagatāmapi

of the worlds too

dānavānāṁ

of the demons

vināśāya

for the destruction

dhatsē

you take

nānāvidhāstanūḥ

bodies of many kinds

Meaning

Answering, says the commentary, the question why the formless one takes form.