The Kirghiz Light

"Forgive him as you forgave Tchitcherine at the Kirghiz Light."

Gravity's Rainbow
Thomas Pynchon

Never found any other reference to the Kirghiz Light. Thought maybe it was related to the Tunguska event.

It's only referenced in Gravity's Rainbow in a couple brief passages like this. In my recollection the character Tchitcherine is not such a great guy, but apparently the Kirghiz Light was a life-changing and spiritual experience for him. The idea of boundless forgiveness and experience of awe.

It came to mind now because of the previously posted Nostalgia of the Infinite.