Meditation simply means the management of your thoughts. It is to have the ability to think of what you want and when you want, without interference from other thoughts. Meditation is to develop the ability to concentrate on a particular subject without being attracted and influenced by the five senses, the five vices and the five elements.
Yoga, which is associated with meditation, simply means to have union or make connection with some object, subject, person or God. However, yoga is usually associated with spirituality. Yoga is to have connection and to have dialogue or sweet conversation with the divine source of inspiration, whom many call God. Meditation, therefore is a prerequisite or condition that assists spiritual seekers to have unbroken, undisturbed and continuous access with divinity and this experience is called yoga, another form of prayer.
~ Brahma Kumaris, Mt Abu.