[Response to a description of a box containing an Ouija board apparently moving by itself]
In case you needed more evidence why playing with Ouija boards is a bad idea, Anon's story aptly illustrates the disordered desire for control that motivates attempts to invoke such forces.
God is in control of all. He grants us mastery of our individual destinies within limits, and efforts to impose our will beyond those limits are dangerously prideful.
There are powers that lie in wait to take advantage of that pride. Those powers mean us harm, and dabbling with a Ouija board is akin to laying out the welcome mat for them.
God's mercy is the white pill, which He graciously dispensed to Anon. We can and should be thankful for his conversion.
Take warning, though, that willingly indulging in sin with the presumption of that mercy is no less prideful.