'He who knows this and meditates on the foot of Brahman, consisting of four quarters, by the name of Gyotishmat, becomes full of light in this world. He conquers the worlds which are full of light, whoever knows this and meditates on the foot of Brahman, consisting of four quarters, by the name of Gyotishmat.

In plain words: The swan says whoever understands this and meditates on Brahman as these four lights becomes full of light in this life and wins worlds full of light.