The fifteenth chapter of the Bhagavad-gita may be the shortest with only twenty verses, but it still manages to summarise the entire vision of Vedanta in its verses.
Through the use of an upside-down tree as metaphor, Lord Krishna begins by explaining the true nature of the world. Having thus laid the foundation, the Lord next enumerates the nature of the individual soul or jiva. Continuing the thread of thought, the nature of God or Ishvara is expounded upon. Having unravelled each individual constituent, the Lord goes on to tie all ends together by explaining the relationship between the three.
Thus the fifteenth chapter systematically explains some of the simple yet profound questions that philosophy seeks to answer.
