To Aniela Jaffe
Dear Aniela, Bollingen, 8 September 1951
Here comes a sign of life!
After Eranos I was very tired.
Have recovered a bit now, and again a though t has caught me, this time with reference to synchronicity.
I must rework the chapter on astrology.
An important change has to be made-Knoll put me on to it.
Astrology is not a mantic method but appears to be based on proton radiation (from the sun).
I must do a statistical experiment in order to be on sure ground.
This preys on my mind but not so much that I forget you.
How are you?
I hope better.
Please let me have a word from you.
After Eranos I missed the daily exchange of ideas and the warmth of life lapping me round.
I’m sorry I have to stop.
My son has just arrived by sailing boat.
Meanwhile with cordial greetings,
C. G . ~Carl Jung, Letters Vol. II, Pages 22-23.
Note: According to Knoll, solar proton radiation is strongly influenced by planetary constellations.
Cf. Knoll, “Transformation of Science in Our Age,” Man and Time, Papers from the Eranos Yearbooks,(1957); Jung, “On Synchronicity,” CW 8, Appendix, par. 987, and “Synchronicity,” par. 875.