I might just add that feng shui on the garden is far more flexible than in the home. Doors and facing directions are firmly fixed indoors. You cannot easily re designate a "main entrance" to the home ( ie front door is front door , regardless of using it). Having said that, I changed the direction of one of my doors by adding a porch, with the door juxoposed to the entrance door. Since this was then the main entrance door of the house, its facing direction became the main direction.