Definition of Yoga as per Swami Abhedananda:
As per Bhagavad Gita, Yoga is the method of realizing the ultimate truth or attaining the highest wisdom. Its various definitions are:
1. Union of External Objects
2. Mixing of One thing with another.
3. Inter-relation of causes which produce a common effect.
4. Orderly equipment in any profession
5. Application, Determination and reasoning that is necessary for the discovery of a certain truth.
6. Poser of sound that makes it convey a specific idea
7. Preservation of what one possesses.
8. Transformation of one thing into another
9. Union of one soul with another or with the universal spirit (Yujyate Iti yogah)
10. flowing of a thought-current towards an object
11. Restraint of all thought-action through concentration and meditation