left and right mind (brain).
Both these two left and right parts give rise to different creative urges in us.

The left Brain takes care of logic, theology, philosophy, math and science etc. All the thought process happens in this left Brain.
Where as the right mind give rise to music, art, painting, love & other emotions. The right mind immensely facilitates the process of meditation. Right mind do not think. It is deeply related to the source of infinite creativity. Here thoughts does not arise as a thinking process, rather anything happens as an instant flash of creativity. This part does not think. This part feels.
Source: www.meditationiseasy.com/mCorner/techniques/zen_meditation.htm
Image: wired.com

