Exoterically the sun was only the goal of the soul, or, in pure pantheism, of the sight.

In the following[22] the sin-forgiving side of Savitar is developed, whereby he comes into connection with Varuna: God Savitar deserveth now a song from us; To-day, with guiding word, let men direct him here.
He who distributes gifts unto the sons of men, Shall here on us bestow whatever thing is best; For thou, O Savitar, dost first upon the gods Who sacrifice deserve, lay immortality, The highest gift, and then to mortals dost extend As their apportionment a long enduring life.
Whatever thoughtless thing against the race of gods We do in foolishness and human insolence, Do thou from that, O Savitar, mid gods and men Make us here sinless, etc.
But if this song smacks of the sacrifice, still more so does V.81, where Savitar is the 'priest's priest,' the 'arranger of sacrifice,' and is one with P[=u]shan.

He is here the swift horse (see above) and more famous as the divider of time than anything else.

In fact this was the first ritualistic glory of Savitar, that he divides the time for sacrifice.

But he receives more in the light of being the type of other luminous divinities.