As these optical illusions prove, our senses cannot always be trusted.
Our mind is the final arbiter of truth.
The Red Squares are the Same Color in the upper part and in the lower part of the "X"
The diagonal lines are parallel.
Parallel lines at sunrise.
Wavy Squares? No!
The background of concentric circles makes the squares appear distorted.
So never take a decision based on your observations...
Think of what you saw and what you heard...
Analyze the fact and take the decision.