Rising, the sun is the hinkâra, risen, he is the prastâva, at noon he is the udgîtha, in the afternoon he is the pratihâra, setting, he is the nidhana. That is the Brihat Sâman as interwoven in the sun.

In plain words: The five parts of the chant are matched to the sun's journey across the day: rising, fully risen, noon, afternoon, and setting. This is the Brihat chant found in the sun.