Śrīmatī’s tenth name is Sūryopāsikā, which means that She’s exclusively dedicated to worshipping the sun.

How is it possible that She worships the Sun, since it is known from the Vaiṣṇava-scriptures that She has the greatest love for Kṛṣṇa, and that the devotees of Lord Kṛṣṇa do not worship any other deities, since that may damage their loyalty? Many people may ask that question.

The answer is that the love for Kṛṣṇa of His eternal associates, especially the inhabitants of Vraja is distinct from the kingdom of sādhana in that they do not realize that Kṛṣṇa is the Supreme Lord. For them, He is just their beloved. For the cowherdgirls He is simply the most beautiful and sweet prince of Vraja, their swain, whom they love millions of times more than their own life-airs. Desiring His health and His welfare, Śrī Rādhārāṇī worships the sungod with undivided devotion. The sūrya pūjā is just another manifestation of Her great love for Him. As a result, Kṛṣṇa Personally comes to do the pūjā for Her, in front of Her mother-in-law Jatilā, disguised as a celibate youngster from the priestly caste. Thus sūrya pūjā is the greatest help in nourishing the līlā rasa of Śrī-Śrī Rādhā-Mādhava and Their girlfriends.

Srila Ananta das Babaji