Clarifying Wang Yangming’s thought through a study of his root metaphors of heart-mind is an important step toward explaining his further concepts of the human world. Along with the root metaphors of water and mirror, the metaphors of plant and light work together for Wang to form a coherent theoretical and practical system of xin (heart-mind). This method is also a good way to unravel the various theories of the “three teachings” that are intermingled in his thinking. By using this methodology Wang’s attempts to harmonize several ancient traditions of heart-mind that appear as possibly polarized to modern readers, are illuminated (though they did not appear contradictory to the Neo-Confucians).