At the age of 27, Rembrandt painted the seascape Christ in the Storm on the Sea of Galilee based on the story in Mark 4. With its distinctive contrast of light and shadow, Rembrandt’s painting shows a small boat threatened with destruction in a furious storm. As the disciples struggle against the wind and waves, Jesus is undisturbed. The most unusual aspect, however, is the presence in the boat of a 13th disciple whom art experts say resembles Rembrandt himself.