Those who are followers of the Śaṅkara cult are generally known as Vedāntists. This does not, however, mean that Vedānta is a monopoly study of the Śaṅkara-sampradāya. Vedānta is studied by all the bona fide sampradāyas, but they have their own interpretations. But generally only those in the Śaṅkara-sampradāya are known as Vedāntists, and people have no knowledge of the Vaiṣṇava Vedāntists. For this reason the Bhaktivedanta title was first offered to the author by the Vaiṣṇavas.
The Lord agreed to take lessons from Bhaṭṭācārya on the Vedānta, and they sat together in the temple of Lord Jagannātha. The Bhaṭṭācārya went on speaking continually for seven days, and the Lord heard him with all attention and did not interrupt. The Lord's silence raised some doubts in Bhaṭṭācārya's heart, and he asked the Lord how it was that He did not ask anything or comment on his explanations of Vedānta.
The Lord posed Himself before the Bhaṭṭācārya as a foolish student and pretended that He heard the Vedānta from him because the Bhaṭṭācārya felt that this was the duty of a sannyāsī. But the Lord did not agree with his lectures. By this the Lord indicated that the so-called Vedāntists amongst the Śaṅkara-sampradāya, or any other sampradāya who do not follow the instructions of Śrīla Vyāsadeva, are mechanical students of the Vedānta. They are not fully aware of that great knowledge. The explanation of the Vedānta-sūtra is given by the author himself in the text of Śrīmad-Bhāgavatam. One who has no knowledge of the Bhāgavatam will hardly be able to know what the Vedānta says.
The Bhaṭṭācārya, being a vastly learned man, could follow the Lord's sarcastic remarks on the popular Vedāntist. He therefore asked Him why He did not ask about any point which He could not follow. The Bhaṭṭācārya could understand the purpose of His dead silence for the days He heard him. This showed clearly that the Lord had something else in mind; thus the Bhaṭṭācārya requested Him to disclose His mind.