You may know that meditation is a practice where someone uses his/her mindfulness, or focusing his/her mind on a particular object, thought or certain activity to train attention and awareness, and reach a mentally clear and emotionally calm.
Scholars have found meditation difficult to define, as the practices vary both between the traditions and within them. For your information, some of meditation (Dhyana) come from the Hindu traditions of Vedantism. You have to know that Meditation has been practiced since long ago in generous religious traditions and beliefs. Besides, it often as part of the path towards enlightenment and self realization. Since the 19th century, Meditation has spread from its origins to other cultures where it is commonly practiced in private and business life.