There are visionary people who have conceptions of the different colors of thoughts and imaginations and feelings. This is symbolical rather than astral. The color of a thought corresponds with the condition of the mind. It shows the element to which the thought belongs: whether the thought belongs to the fire element, to the water element, or to the earth element. This means that it is the feeling which is behind the thought that produces its color around it as an atmosphere which surrounds it. When such visionary people see the thought-form in the form of color, it is what surrounds the thought, it is the atmosphere of the thought, and this is according to the element belonging to that thought.