The diver said: 'Friend, I will declare unto you one foot of Brahman.' 'Declare it, Sir,' he replied. He said to him: 'Breath is one quarter, the eye is one quarter, the ear is one quarter, the mind is one quarter. This is a foot of Brahman, consisting of four quarters, and called Âyatanavat (having a home). 'He who knows this and meditates on the foot of Brahman, consisting of four quarters, by the name of Âyatanavat, becomes possessed of a home in this world. He conquers the worlds which offer a home, whoever knows this and meditates on the foot of Brahman, consisting of four quarters, by the name of Âyatanavat.'
In plain words: The diver-bird teaches that breath, eye, ear and mind together make up one part of Brahman, called 'having a home.' Whoever understands and meditates on this will have a home in this world and in the worlds beyond.