Philosophizing (n.) requires constantly changing position, not standing too long on one leg, like a climber who walks backwards a while to stretch other muscles.
Philosophizing (n.) longs for one goal: thoughts at peace.
Philosophizing (n.) means descending into the old chaos and feeling at home there.
Philosophizing (n.) is strenuous because one must keep thinking against the physical need to say 'let's have done with it now'.
Philosophizing (n.) manufactures its own evidence: staring fixedly at an object to 'read off' its colour name, again and again, we conclude something particular happens whenever we say "blue".
Philosophizing (n.) makes the firm ground we stood on feel boggy and unsafe — and the uncertainty disappears the moment we return to common sense.