What's a Little Gravity,Right???

A PARABLE ABOUT PERCEPTION
One time, in Looseyanna, I watched a colony of ants trying to get the carcass of a cockroach up a wall to their nest above the drop-ceiling. 
They were very effective getting the carcass UP the wall.
But there they met an insuperable and implacable obstacle: the metal lip where the ceiling tiles rested: EVERY single time they essayed to navigate the 90 degree traverse, the carcass succumbed to gravity and fell back to the floor.
Where, I imagined, the ants down there thought it was raining dead cockroaches from heaven above.