You have to have a passion for your work. How can we expect people to be passionate if you, as their coach, does not have a passion? Coaching has to be something that gives you passion and energy.
Everything is worth it. The hard work, the times when you're tired, the times where you're a bit sad... In the end, it's all worth it because it really makes me happy. There's nothing better than loving what you do.
We need to steer clear of this poverty of ambition, where people want to drive fancy cars and wear nice clothes and live in nice apartments but don't want to work hard to accomplish these things. Everyone should try to realize their full potential.
My father taught me to work, but not to love it. I never did like to work, and I don't deny it. I'd rather read, tell stories, crack jokes, talk, laugh -- anything but work.