Feelings are more than joy, sorrow and anger. Specific visualizations of these feelings may occur to us when we try to experience the wide variety of slightly changing emotions during meditation, for example.
Feelings can be playful, autonomously focusing and diffusing at will, like liquid metal before solidifying, or the vibration of cells. Perhaps we see them in color, perhaps not. Sometimes even I am unaware of what these visuals are, other than the form and color of my emotions.
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