I’ve been using imagery related to light in my meditations for many years now. I began to this consciously around the time of my first cancer diagnosis in 2001. Before that time I was fascinated by light and shadow and made many photographs using light as the subject. Guided meditations from Dr. Mitchell Gaynor and Belleruth Naparstek helped me incorporate this imagery into my meditation practice. Kabbalah is also rich with light imagery and I have used that in meditation as well.
Here is some (almost) raw footage of video I made this morning while waiting for my weekly check up with Dr. Samuels. I will probably increase the duration to about 18 minutes, add some ambient music and maybe play with the blue background a bit.