Raja Vidya Guhya Yoga-Bhagavad Gita Chapter 9 [Confidential Knowledge of the Ultimate Truth]
Krishna Said > Shaloka: 22
English
But those who worship Me with devotion, meditating on My transcendental form–to them I carry what they lack and preserve what they have.
Purport
One who is unable to live for a moment without Krishna consciousness cannot but think of Krishna twenty-four hours, being engaged in devotional service by hearing, chanting, remembering, offering prayers, worshiping, serving the lotus feet of the Lord, rendering other services, cultivating friendship and surrendering fully to the Lord. Such activities are all auspicious and full of spiritual potencies; indeed, they make the devotee perfect in self-realization. Then his only desire is to achieve the association of the Supreme Personality of Godhead. This is called yoga. By the mercy of the Lord, such a devotee never comes back to this material condition of life. Ksema refers to the merciful protection of the Lord. The Lord helps the devotee to achieve Krishna consciousness by yoga, and when he becomes fully Krishna conscious the Lord protects him from falling down to a miserable conditioned life.