In chapter five Lord Krishna delineates the concepts of action with detachment and renunciation in actions explaining that both are a means to the same goal. Here He explains how salvation is attained by the pursuance of these paths. Thus this chapter is entitled: Action and Renunciation. 
In chapter four Lord Krishna reveals how spiritual knowledge is received by disciplic succession and the reason and nature of His descent into the material worlds. Here He also explains the paths of action and knowledge as well as the wisdom regarding the supreme knowledge which results at the culmination of the two paths. Thus this chapter is entitled: Approaching the Ultimate Truth.
In chapter two Arjuna accepts the position as a disciple of Lord Krishna and taking complete of Him requests the Lord to instruct him in how to dispel his lamentation and grief. This chapter is oftened deemed as a summary to the emtire Bhagavad-Gita. Here many subjects are explained such as: karma yoga, jnana yoga, sankhya yoga, buddih yoga and the atma which is the soul. Predominance has been given to the immortal nature of the soul existing within all living entities and it has been described in great detail. Thus this chapter is entitled: The Eternal Reality of the Souls' Immortality.
Chapter one introduces the scene, the setting, the circumstances and the characters involved determining the reasons for the Bhagavad-Gita's revelation. The scene is the sacred plain of Kuruksetra. The setting is a battlefield. The circumstances is war. The main characters are the Supreme Lord Krishna and Prince Arjuna, witnessed by four million soldiers led by their respective military commanders. After naming the principal warriors on both sides, Arjunas growing dejection is described due to the fear of losing friends and relatives in the course of the impending war and the subsequent sins attached to such actions. Thus this chapter is entitled: Lamenting the Consequence of War.
