Dreaming of a strong and muscular arm means you have to work hard. If you dream of a weak and scrawny arm, it indicates economic difficulties and sorrows. Dreaming of an amputee arm is signal of loss or illness. Dreaming of a big arm is premonition of wealth and fortune, but if you dream of a hairy arm is indicative of problems and difficulties.
Read more about dreaming of Arm in other dream meanings interpretations.