An object's axes travel with the object
Every object has a center point and has its own set of 3D axes.
They travel and rotate with the object.
The 3D axes belonging to the penguin mentioned earlier traveled and rotated with him.
When I turned him FORWARD one-half revolution, this caused his green axis, which originally pointed up (from my viewpoint) to be pointing down (from my viewpoint) .
As a result, I had to move him up to force him to fall down into the water head first.
(There is a better way to do that using the asSeenBy parameter.)