This picture from an episode of the Simpsons gets me every time either if it is a reason for working out, going to work or doing the things you do day in and day out, this is one of the main reasons to be the best person you are in life and provide as much as you can.
I know I don't have a child yet but I know the things I do in life right now, reason why I focus on work and gaining experience, workout to maintain and keep a healthy body, and preparing for the future in life is for my potential future daughter/son and family but this picture does provide a sense of motivation for your everyday activity, no matter what it is
Having a kid changes your perspective on things for sure. I know I'm more sensitive to what's going on around us than I ever have been. One of these you'll see what I mean. It's tough to explain, but it's just "different". Your focus goes from "ME ME ME" to "THEM THEM THEM". And you don't believe it until you have your own. I know I didn't. lol
I totally understand what you're saying, I've been in a relationship with my girlfriend for a while now and she has a lil boy and they both mean so much to me there really isn't any words for it. Hearing things on the news or current events in the world pertaining to kids hits me at least 10x harder than it used to, because of the little one. It really does put things into perspective and has you take in a new view and mindset on the world and the environment around you.
Totally understand. For my training now for running when getting tired and need to go that further, I have envision my wife ahead of me urging me to that point. And with having a daughter, I always have tried to lead by example and do good by her so that she does good by me.