Because we need a witness to our lives. There's a billion people on the planet. I mean, what does any one life really mean? But in a marriage, you're promising to care about everything — the good things, the bad things, the terrible things, the mundane things... All of it. All the time, every day. You're saying, "Your life will not go unnoticed, because I will notice it. Your life will not go unwitnessed, because I will be your witness."
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