Meditation simply means learning to forget all that you have learned. It is a process of deconditioning, a process of dehypnosis.
The society has burdened everybody with thousands of thoughts. Meditation simply helps you to come out of that world of thoughts, into a state of silence. It is a process of cleaning your slate completely, it is emptying all that has been forced and stuffed inside you.
Focusing, like concentrating is a narrowing of awareness. You concentrate on one object to the exclusion of everything else. By contrast, meditation is all-inclusive, your consciousness is expanded. The contemplator is focused on an object – perhaps a religious object, a photograph or on an inspiring aphorism. The meditator is simply aware, but not of anything in particular.