41. On account of light being seen (declared in the text).
Between the two texts referring to the Person of the size of a thumb, there is a text declaring that to that Person there belongs light that obscures all other light, and is the cause and assistance of all other light; and such light is characteristic of Brahman only. 'The sun does not shine there, nor the moon and the stars, nor these lightnings, and much less this fire. After him, the shining one, everything shines; by his light all this is lighted' (Ka. Up. II, 5, 15)--This very same sloka is read in the Âtharvana (i.e.
[paragraph continues] Mundaka) with reference to Brahman. Everywhere, in fact, the texts attribute supreme luminousness to Brahman only. Compare: 'Having approached the highest light he manifests himself in his own shape' (Kh. Up. VIII, 12, 3); 'Him the gods meditate on as the light of lights, as immortal time' (Bri. Up. IV, 4,16); 'Now that light which shines above this heaven' (Kh. Up. III, 13, 7).--It is thus a settled conclusion that the Person measured by a thumb is the highest Brahman.--Here terminates the adhikarana of 'him who is measured' (by a thumb).