How can we tame the most powerful instrument we possess, our mind?

The mind, as Arjuna complained, hops from belief to doubt, from one conclusion to its negation and it causes turmoil and confusion. But, there is one method by which it can be conquered. The black bee can bore a hole in the hardest wood. But, when dusk intervenes while it is sipping the nectar from the lotus flower and, as a result, when the open petals close in on the bee, it finds itself imprisoned, with no hope of escape. It does not know how to deal with softness! So too, the mind can play its tricks and jump wantonly in any arena; but when placed on the lotus feet of the Lord, it becomes inactive and harmless. In order to offer the mind entirely to the Lord, deep detachment from worldly desires is needed. Superficial devotion or shallow steadfastness cannot succeed. To fell the hard sandalwood tree, a heavy axe of steel is needed.

– Divine Discourse, Dec 24, 1980.