। ॥ १२० ॥
In plain words
He becomes the very Self of all of them. But someone who worships a god as something apart — thinking 'I am one thing, that god is another' — lives and knows no better than an animal.
Close to the Sanskrit
For he becomes their Self — but whoever worships another deity, [thinking] 'I am one, that is another,' thus knowing, he is like an animal.