Want to know why the front door is the most important part of your home? Itâ€™s because the front door is the â€˜mouthâ€™ of your home. Did I really say that? Yup, I did! And, funnily enough, in my head I can just hear my 4 your old boy, Judah laughing and saying to me â€˜The house doesnâ€™t have a mouth, sillyâ€™.