we have still to overcome his shadow!
There are several ways to overcome shadows. One is to step back into the light but you do not have that luxury if you live in a cave.
Another way is to learn about shadows. If you cannot go outside maybe you can add small candles and see how you control your shadow.
Dancing around the fire can teach you about the motion of the moon and by extension planets as long as you don´t square dance.
Only read a bit of Nietzsche. Also sprach Z and this one.
If you are into the philosophy of science i recommend Against Method by Paul Feyerabend.