Go blind. Try, search, make mistakes. Stumble upon misunderstanding, criticism, without much hope for the outcome. At the same time be eager to reach your goals and love what you do. So as you can describe life, you can also describe bringing up a child. Want to complicate the situation? Imagine that you are a father, and you must raise a teenaged daughter without the help of her mother, in addition to dealing with life-threatening conditions. Casey Affleck, who plays the role of such a single father in his film Light of My Life, solves this problem in a duet with young Anna Pniowsky.