Yoga
Yoga means union. Two things cannot unite when they are not fitted for each other. If one is imperfect to start with, it has to be corrected and remoulded and made perfect before it can have union with the perfect one. Therefore yoga, as union, is the culmination of spiritual practice, and not merely a practice itself, as commonly represented. The perfection of the imperfect is what has to be achieved before union is possible. This is achieved by the cleaning process under Sahaj Marg. Now the two have to merge to become one - Yoga is yet to be achieved.
Taken from the book "The Spider's Web, Vol. 3", Chapter "Cleaning", pg. 122, by Revered Chariji