Putting a mirror that reflects the front door may cause hostilities both inside and out. I’ve seen a lot of families experiencing different kinds of hostilities and upon dong a Feng Shui audit it is usually cause by a mirror inside the house that reflects the front door.
Why is this so? Because the chi that comes from outside that goes inside the house is reflected back out right away because of the mirror, and because of this the ‘fresh’ chi inside the house is limited and this usually causes hostilities inside the house. Meaning, spouses and/or siblings and/or parents and child or children will quarrel a lot.