What does it mean to dream about an iron door?

Is it bad to dream about iron gate?

An iron gate refers to a gate made of iron. "The Biography of Gongsun Zan" in the Records of the Three Kingdoms: Wei Zhi states: "The middle of the moat was built into a gate, ten feet high, where he lived." Pei Songzhi's note quoted Wang Can of the Han Dynasty's Records of Heroes at the End of the Han Dynasty: "Zan built an iron gate, lived on the upper floor, and blocked off the left and right."

So, what does dreaming about iron gates indicate?

If you dream of an iron gate, you will fight continuously for survival.