Part 14 · Chapter 131

And to this alludes the article of Idra de Haazinu mentioned above, on page 292b, which mentioned two aspects: the first is the matter of the surrounding light called by the name Tefillin of the head; and even though it is higher, nevertheless, since it resembles the lower surrounding light of the Tefillin, as above, which is attainable by us, therefore it called it by the name Tefillin of the head. And afterwards, opposite the inner one, it said: "Afterwards they are joined in his sides, and shine, and enter into the three cavities of the skull," etc. — and that is the fifth aspect above.