This is a bridge in Paris. you hang locks on it with the name or you & your boyfriend/girlfriend/best-friend then throw the key into the river. so even though the friend/relationship may end, you can’t remove the lock. it stays there forever, as relevance to someone once a part of your life.
Hum. I noticed locks along the fences around Lake Merced when I first moved up to SF. Always wondered what they meant. This is as good an explanation as any.
Jaena Rae 