I learnt this poem way back in school and even now it makes so much sense. Sometimes, to see things as they are, you have to change your own position.
Here it goes...Head downward hung the bat
It looked over field and town
"It's very clear to me," he said
"The world is upside down."
"How silly," laughed the pup
"You know it isn't true
The world is right side up
What's upside down is you."