Lucky is more than a dog; he is a symbol. For some, he is a symbol of resilience and perseverance, a canine "It Gets Better" story. For others, he is an affirmation of life and hope. To me, he is the best of what it means to be a dog: remaining positive, living in the moment, providing unconditional love.
In midlife, people can become so overwhelmed with multiple demands on their time that they can't get started on anything, much less those tasks that they need to get through somehow. You've got to get stuff done at work, pick up your kids, finish cleaning out your closets, maybe head to the gym, and get dinner on the table.