The meditative state is the end of the Hatha Yoga path in accordance with Patanjali. It is a state where the mind is clear, relaxed and inwardly focused.
Meditation is the means for fathoming all the levels of ourselves and experiencing the center of consciousness within. When the mind is silent and no longer distracts you, meditation deepens.
My favourite technique of Meditation is Mindfulness Meditation, where there is constant focusing and refocusing each moment and every breath on the object of our awareness. It is a practice extremely beneficial to the daily challenges faced and can be therapeutic to various psychological conditions.