Meditation is the practice of observing the mind without judgement or reactivity. It is the traditional method for realizing the higher Self or core-consciousness. A byproduct of meditation practice is better mental health, reduced stress and increase productivity. When you pracitce meditation, you realize that that you are not your thoughts. This creates space inside so that you become less reactive and mechanical if your actions.
Researchers have shown than yoga and meditation increases the activity of stress-blocking neurotransmitters. Meditators showed a significant increase in gray matter in the hippocampus which is associated with learning and memory. They also found a decrease in gray matter in the amygdala which is associated with anxiety and stress. Through meditation one can become liberated from the bondage of the egoic mind and realize the meaning of life!