Agni, Vayu and Indra were superior to the other Devas because they gained a closer vision; and they were able to do this because they were purer; while Indra stands as the head of the Devas, because he realized the Truth directly, he reached Brahman. The significance of this is that whoever comes in direct touch with Brahman or the Supreme is glorified.
IV
Thus the teaching of Brahman is here illustrated in regard to the Devas. He dashed like lightning, and appeared and disappeared just as the eye winks.
The teaching as regards the Devas was that Brahman is the only Doer. He had appeared before them in a mysterious form; but the whole of the unfathomable Brahman could not be seen in any definite form; so at the moment of vanishing, He manifested more of His immeasurable glory and fleetness of action by a sudden dazzling flash of light.
V
Next (the teaching) is regarding Adhyatman (the embodied Soul). The mind seems to approach Him (Brahman). By this mind (the seeker) again and again remembers and thinks about Brahman.
Only by the mind can the seeker after knowledge approach Brahman, whose nature in glory and speed has been described as like unto a flash of lightning. Mind alone can picture the indescribable Brahman; and mind alone, being swift in its nature, can follow Him. It is through the help of this mind that we can think and meditate on Brahman; and when by constant thought of Him the mind becomes purified, then like a polished mirror it can reflect His Divine Glory.
VI
That Brahman is called Tadvanam (object of adoration). He is to be worshipped by the name Tadvanam. He who knows Brahman thus, is loved by all beings.
Brahman is the object of adoration and the goal of all beings. For this reason he should be worshipped and meditated upon as Tadvanam. Whoever knows Him in this aspect becomes one with Him, and serves as a clear channel through which the blessings of Brahman flow out to others. The knower of God partakes of all His lovable qualities and is therefore loved by all true devotees.