The sixth limb of Patañjali’s 8 Limbs of Yoga is dhāranā: fixed concentration on one object or task, a state in which there are no distractions. When you are enthralled with the object of your concentration, all hindrances disappear.
A Way to Practice Dhāranā
The goal is to still the mind… easier said than done! A beginner technique for dhāranā is to focus your attention on one object, such as a candle, a fresh flower, or a precious gem. Another technique, called Transcendental Meditation, asks you to repeat a simple mantra over and over.