The song "This Strange Engine" by Marillion tells the story of a boy who feels like he doesn't belong and is struggling to figure out his place in the world. The lyrics depict his childhood, his relationship with his parents, and the challenges he faces as he grows up. The song also touches on themes of loss, pain, and the search for meaning in life. The boy's experiences shape him into someone who is not defined by others' expectations and who strives to live authentically. The song captures the complexity of human emotions and the journey of self-discovery.