Last week’s question about the Black Sun reminded me of this site I stumbled over a few months back.
https://www.thetoolsbook.com/the-black-sun
The name of the ritual gave me pause due to historical associations. In the video the therapist explains that they picked that name because it symbolizes the hidden power of an eclipsed sun. The explanation seemed a bit glib, but I tried the exercise and it seemed effective but couldn’t shake the weird historical associations with the Nazis and so I stopped.