What do Scylla and Charybdis represent?

Answer 1

In Greek mythology, Scylla is a many-armed rock monster that eat sea travelers,

while Charybdis is a whirlpool. The two represents of having just two unavoidable,

almost equally negative, unpleasant, or harmful choice, or decision that must be

made. It is similar to the idiomatic expression of "choosing between the devil, and

the deep blue sea".