I am a massage therapist and I use my abilities to see color with my eyes closed to enhance the my clients experience. It's usually faint colors but occasionally I will see a vibrant red or yellow. In my experience the brighter the color the greater the amount of energy and memories stored in that body part.
I once experienced a bright orange color emanating from the right hip of a client, when my hand touched it a great electric shock passed through my entire body and the woman began to weep and tell me of her past abuses. Once she stopes talking I encouraged her to envision breathing in a bright white cleansing light to her hips, and to exhale anything her body wanted to release. By the time she got off the table she had had a profound shift in energy, she said she felt lighter and peaceful (so do all my clients because I give a great massage, but there was something different about her).
I have never studied light working or light therapy but have experienced things with color and light that are "woo woo" as my massage school instructors would say. I'm interested if any other massage therapists have had similar experiences or any suggestions for working with color and light therapies with clients. Many blessings.