Sangyama is a yogic word and it has three components, dharana, dhyana, samadhi. To get a safe handle on the mind, it must be purified through Karma Yoga. If you don't have a safe handle to hold the knife, it will cut you first before you can use it to cut anything else.
Swami Sarvapriyananda teaches Chapter 6 (Verse 15) of the Bhagavad Gita. In this series of talks, Swami Sarvapriyananda unfolds the highest truths of Vedanta through the study of the Bhagavad Gita (The Song of God).