Forging metal in fire is read as character shaped by heat and pressure. Tradition links it to hardship that makes you stronger and to bonds that are hammered into form.
When this appeared in your dream, what were you feeling?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.