There are four different sects of Vaiṣṇava ācāryas—the Śuddhādvaita, Viśiṣṭādvaita, Dvaitādvaita and Acintya-bhedābheda. All the Vaiṣṇava ācāryas in these schools have written commentaries on the Vedānta-sūtra, but the Māyāvādī philosophers do not recognize them. The Māyāvādīs distinguish between Kṛṣṇa and Kṛṣṇa's body, and therefore they do not recognize the worship of Kṛṣṇa by the Vaiṣṇava philosophers. Thus when the Māyāvādī sannyāsīs asked Lord Caitanya why He did not study the Vedānta-sūtra, the Lord replied, "Dear sirs, you have asked why I do not study Vedānta, and in answer to this I would speak something, but I am afraid that you would be sorry to hear it."
"We shall be very much pleased to hear You," all the sannyāsīs replied. "You appear just like Nārāyaṇa, and Your speeches are so nice that we are taking great pleasure in them. We are very much obliged to see and hear You. Therefore we shall be very glad to hear patiently and accept whatever You say."
The Lord then began to speak on Vedānta philosophy as follows: Vedānta-sūtra is spoken by the Supreme Lord Himself. The Supreme Lord, in His incarnation as Vyāsadeva, has compiled this great philosophical treatise. Since Vyāsadeva is an incarnation of the Supreme Lord, he cannot be likened to an ordinary person, who has the four defects which arise due to contact with material existence. The defects of a conditioned soul are: (1) he must commit mistakes; (2) he must be illusioned; (3) he must possess the tendency to cheat others; and (4) all his senses must be imperfect. We must understand that the incarnation of God is transcendental to all these defects. Thus whatever has been spoken and written by Vyāsadeva is considered to be perfect. The Upaniṣads and Vedānta-sūtra aim at the same goal: the Supreme Absolute Truth. When we accept the import of Vedānta-sūtra and the Upaniṣads directly as they are stated, we become glorified. The commentaries made by Śaṅkarācārya, however, are indirect and are very dangerous for the common man to read, for by understanding the import of the Upaniṣads in such an indirect, disruptive way, one practically bars himself from spiritual realization.