Vedās are the most ancient scriptures in the world. Later, different sages in different places and at different times summarized the Vedās into Upanishads. In the Purānās, meanings of the Vedās and Upanishads are explained in the form of interesting stories. Of the eighteen Purānās, Śrīmad Bhāgavatam is the most celebrated.
This great Purāna incorporates fourteen Gītas, which are spread out in different cantos. There are eighteen thousand verses in the Bhāgavatam, organized in twelve cantos. The eleventh canto contains the Uddhava Gīta, which is the advice given by Lord Kṛṣna to his devotee Uddhava. It includes three separate Gītās within it. The other Gītās are seen in the earlier cantos.
All of them are greatly beneficial in cleansing the human mind. Reading, understanding and contemplating on the ideas and ideals contained in them will provide everlasting happiness to mankind, leading to enlightenment and ultimate liberation.