प्रियशिरस्त्वाद्यप्राप्तिः, उपचयापचयौ हि भेदे ॥ १२ ॥
priyaśirastvādyaprāptiḥ, upacayāpacayau hi bhede || 12 ||
priyaśirastvādi—(Qualities like) joy being Its head etc.; aprāptiḥ—are not to be taken everywhere; upacayāpacayau—increase and decrease; hi—because; bhede—(are possible) in difference.
12. (Qualities like) joy being Its head etc. are not to be taken everywhere, (being subject to increase and decrease and) increase and decrease (are possible only) if there is difference (and not in Brahman in which there is non-difference).
Attributes like joy being Its head etc. mentioned in the Taittiriya Upanishad are not to be taken and combined in other places where the Upasana of Brahman is enjoined, because the terms ‘joy’, ‘satisfaction’, ‘great satisfaction’, ‘bliss’, etc. indicate qualities which have increase and decrease relatively to each other and to other experiencers (Jivas), and therefore can exist only where there is difference. But Brahman being absolutely without any difference, these attributes cannot constitute Its nature, and as such they are to be confined to the texts prescribing them and not taken in other places.