Hi Aldaska!
Place the picture so the image is facing toward the room if it is on a wall or upward if it is beneath a chair. You might muscle test that this is best for your particular situation.
The only time I have ever heard Marie say anything about an image facing a wall is the mirror that is placed with the silvered surface toward a bathroom wall when the bathroom is behind or adjacent to the bed.
All the best,
Wendy
