Patanjali Yoga Sutras
1.1 Now, instruction in Union.
1.2. Union is restraining the thought-streams natural to the mind.
1.3. Then the seer dwells in his own nature.
1.4. Otherwise he is of the same form as the thought-streams.
Yoga is union. Union of the breath and the movement. Union of the body and the mind.
Be still in your body and the mind will follow. Sit in quiet contemplation and be with whatever arises. Allow a vast awareness to come as your heart settles and your breath slows. Remain here for some time. When the mind travels, gently bring it back to the breath. Say to yourself: “As I breathe in I know I’m breathing in. As I breathe out I know I’m breathing out”. Realize oneness.