Sublime

Convergent focus is a single-minded or narrow focus on an object—anything having matter. That’s the kind of focus you’re displaying in my meditations when you rest your attention in a specific place in your body. It’s the same kind of focus you use when you pay attention to objects in your environment.

focus on the thing that you are really into.

Concentration means “with a center” (“con,” meaning with, plus center);

Dandapani has a remarkably clear way of looking at this. “I define concentration as my ability to keep my awareness on one thing for an extended period of time. Every time my concentration drifts, I use my will power to bring my awareness

condensing doesn’t mean doing more at once, it simply means less waste. It means lowering the ratio of words to ideas, square feet to usefulness, or effort to results.