Rationality According to Dr Chiba.
Rationality is defined as "the state of having good sense and sound judgement." It allows us to think straight and analyse a situation to think of it logically, we need to be rational when dealing with situations because it is our rational mind that can put reason to chaos.
Rationality According to Paprika.
Rationality is all nice and sensible but it is our IRRATIONAL mind that allows us to think outside the box to truly believe in the weird and wonderful things that can't be explained by a solely "rational" mind.
Adopting an irrational view can make your life so much more varied and exciting! Next time something happens that cant be explained, don't dismiss it, imagine.