http://www.artofliving.org/meditation - Sri Sri Ravi Shankar elaborates on what is the need of meditation in today's modern life.

WHAT IS MEDITATION
Settling the surface mind is meditation. Living in the present is meditation. Relaxing deeply is meditation. When you are really happy, reposing in love, you are meditating. Meditation is that space when the thoughts have subsided, and the mind is in complete rest.