Patanjali Yoga: A Technology of Concentration and Focus

The entire technology of Patanjali Yoga is being borrowed and used by Vedanta. This is a powerful technology of concentration and focus. How is it done? Shana, Shana, Upar, Rupa, Rameed, slowly by degrees. One should not be like Hanuman who jumped over the sea to go to Lanka. Even Rama had to build a bridge to walk from India to Sri Lanka.