Think of a black hole as water going down a plug hole. You can see that the rim of the hole is the event horizon, and the water as spacetime. If you were to place a pea near to this area in space, you would observe the pea orbiting in a spiral orbit, eventally past the point of no return. I first hear this analogy in a lecture, and has proven useful therof.
I cab see why this was brought up, because gravity has still yet to be fully understood.