"Do you remember having once drawn up a horoscope for an acquaintance of mine? - Would you not be tempted to demonstrate your art one more time if I provide you with these dates of a young woman? I would even be more interested in this one than the one you had done before."
Rainer Maria Rilke in a letter from Dec.29th 1921 to Freiherr von Arentin
In the years 1915-1922 Rilke kept a close friendship with the astronomer and mathematician Erwein Freiherr von Arentin who practiced astrology as well. (The dates of the young woman were those of his daughter Ruth. Rilke tried to keep the person anonymous as not to influence von Arentin's reading).
Rainer Maria Rilke (1875-1926), painting by Leonid Pasternak