Your dog loves you unconditionally.
Unconditional love is the reason we have dogs. For most people, hunting and protection aren’t something they need from their dog, even though that’s why dogs were domesticated originally. Your dog loves you no matter what kind of day you’ve been having or what kind of day your dog has been having. A human significant other does the same, but sometimes we don’t show it. Dogs show it all the time, because they feel their love for us so often. When you get home after being gone for any amount of time, your dog is ecstatic, because you are the whole world to your dog.
Love your dog unconditionally.
While Molly and Charlie may disagree with me that the mailman is not currently a threat to our way of life, we do agree with each other that loving each other unconditionally brings us happiness. When I get home and they bounce up and down with excitement at seeing me, I have to drop the problems that I came home with and love them back. This is for my benefit because it is useful to deescalate my stress and to allow myself to view my problems with a fresh look later on, but it is also about showing my dogs that I love them as much as they love me. It doesn’t matter if I come home and something is chewed up or they’re in my way while I’m carrying something. As soon as I can, I pick them up and tell them I love them. It makes my dog feel good and it makes me feel good.