The ninth chapter of the Bhagavad Gita is Raja Vidya Yoga. In this chapter, Krishna explains that He is Supreme and how this material existence is created, maintained and destroyed by His Yogmaya and all beings come and go under his supervision. He reveals the Role and the Importance of Bhakti (transcendental devotional service) towards our Spiritual Awakening. In such devotion, one must live for the God, offer everything that he possesses to Him and do everything for Him only. One who follows such devotion becomes free from the bonds of this material world and unites with the Lord.
O son of Kunti, all the beings go back at the end of a cycle to My Prakrti. I project them forth again at the beginning of a cycle.OPEN VERSE
Keeping My own Prakrti under control, I project forth again and again the whole of this multitude of beings which are powerless owing to the influence of (their own) nature.OPEN VERSE
O Dhananjaya (Arjuna), nor do those actions bind Me, remaining (as I do) like one unconcerned with, and unattached to, those actions.OPEN VERSE
Under Me as the supervisor, the Prakrti produces (the world) of the moving and the non-moving things. Owing to this reason, O son of Kunti, the world revolves.OPEN VERSE
Not knowing My supreme nature as the Lord of all beings, foolish people disregard Me who have taken a human body.OPEN VERSE