Lord Caitanya not only preached the Śrīmad-Bhāgavatam but propagated the teachings of the Bhagavad-gītā as well in the most practical way. In the Bhagavad-gītā Lord Śrī Kṛṣṇa is depicted as the Absolute Personality of Godhead, and His last teachings in that great book of transcendental knowledge instruct that one should give up all other modes of religious activities and accept Him (Lord Śrī Kṛṣṇa) as the only worshipable Lord. The Lord then assured that all His devotees would be protected from all sorts of sinful acts and that for them there would be no cause for anxiety.
Unfortunately, despite Lord Śrī Kṛṣṇa's direct order and the teachings of the Bhagavad-gītā, less intelligent people misunderstand Him to be nothing but a great historical personality, and thus they cannot accept Him as the original Personality of Godhead. Such men with a poor fund of knowledge are misled by many nondevotees. Thus the teachings of the Bhagavad-gītā were misinterpreted even by great scholars. After the disappearance of Lord Śrī Kṛṣṇa there were hundreds of commentaries on the Bhagavad-gītā by many erudite scholars, and almost every one of them was motivated by self-interest.
Lord Śrī Caitanya Mahāprabhu is the selfsame Lord Śrī Kṛṣṇa. This time, however, He appeared as a great devotee of the Lord in order to preach to the people in general, as well as to religionists and philosophers, about the transcendental position of Śrī Kṛṣṇa, the primeval Lord and the cause of all causes. The essence of His preaching is that Lord Śrī Kṛṣṇa, who appeared at Vrajabhūmi (Vṛndāvana) as the son of the King of Vraja (Nanda Mahārāja), is the Supreme Personality of Godhead and is therefore worshipable by all. Vṛndāvana-dhāma is nondifferent from the Lord because the name, fame, form and place where the Lord manifests Himself are all identical with the Lord as absolute knowledge. Therefore Vṛndāvana-dhāma is as worshipable as the Lord. The highest form of transcendental worship of the Lord was exhibited by the damsels of Vrajabhūmi in the form of pure affection for the Lord, and Lord Śrī Caitanya Mahāprabhu recommends this process as the most excellent mode of worship. He accepts the Śrīmad-Bhāgavata Purāṇa as the spotless literature for understanding the Lord, and He preaches that the ultimate goal of life for all human beings is to attain the stage of premā, or love of God.