This translation and commentary is a deep-read, indepth study of the instructions given to Uddhava who questioned Sri Krishna about the perplexities of material existence. In the teaching to Uddhava, Krishna stated that He taught three yogas, namely karma yoga, jnana yoga and bhakti yoga. In the Bhagavad Gita discussion with Arjuna He admited teachng only the first two of these. The complete teachings of Sri Krishna were given to Uddhava. All unanswered questions which Sri Krishna either avoided or answered partially, are fully dealt with in the discourse with Uddhava. For that matter instead of advocating karma yoga which is detachment with worldly life, Sri Krishna insisted on jnana yoga, which is detachment and full abandonment of worldly life.
Karma yoga means that a person leaves aside the result of his or her activities, while jnana yoga means that a person refuses both the results and the opportunities for activity. And that was the path which Krishna recommended to Uddhava.