I watched the windup engine make its labored way around the track and saw Mark's face beaming. I felt a supreme joy, difficult to describe and impossible to forget.
There are moments in every person's life where getting seems far more important than giving. We think that adding a metaphorical train to our collection is more important than ensuring that someone else has a bit of joy in their life. I view Thomas S. Monson as a pinnacle of unselfish behavior, and it is great to see how the seed was planted early in his life.
My favorite quote of Christmas 2016 comes from President Monson. "Christmas is the spirit of giving, without a thought of giving."