there are a lot of metaphors in here are some of them
1 Sorrow knocked at my door
2 Ambition called to me
3 hungered for meaning in my life
4 winds of destiny
5 a boat longing for the sea
Remember many metaphors are based on comparative relationships that don't literally make since but none the less make some sense. "Butterflies in the stomach" is an example of metaphor; it makes no literal sense but the comparison and connection still work on some level.