Startup Idea : Meditation tracker

The most important thing for me is not health tracking, but the tracking of my mental state.I would like a simple 2 button tracker (one on either side of the device) and a simple touch sensor in the middle, with 1 led light.One button for Yin, the other button for Yang. The third non-button for touching to track the beginning of the zen phase of mind. The tracker will automatically track the body movements of the meditator. The app will show how deeply, how long, how frequent, how stable the meditation sessions are.The Yin button will track negative thoughts (input by user).The Yang button will track positive thoughts and acts of gratitude (input by user).The touch non-button will track states of bliss and peace (input by user).