What is Meditation?
Meditation is the art of focusing attention so completely on one thing that everything else around it loses focus. Alternatively, meditation is the art of letting go of all focus, paying attention to only the present moment while everything else fades away. Concentration and Mindfulness are two distinctly different forms of meditation and yet the desired result is the same. The mind calms down and remains in one place.
The art of meditation has a religious and philosophical background. Although it can be used alone, it is frequently used with relaxation exercises, yoga, and other types of alternative therapies. Some forms of meditation use a mantra as a vehicle to turn the mind inward, others rely on sensory perception.
Unlike hypnosis, which is a passive experience, directed by someone else, meditation is an active process directed toward balancing the mind, body, and spirit.
For my sources see: Recommended Reading