Sometimes my kids say things on the fly that resonate with me for a long time afterwards. This following little Lewis phrase is one of those statements. Letting go is hard. In this case it was literal, but in parenting it seems I am always figuratively letting go of something I want to hold on to.   “Mom, let go.” Those three words hit me like a punch to the gut. Hot tears fogged up my sunglasses. It was just the mastery of a 2-wheel bike, but it wasn’t. It was more. My six-year-old’s words echoed in my head as…