To dream of muscles represents feelings about how powerful or strong an area of your life is. It may also reflect your feelings about how strong your own abilities are. Advantages or skills that make doing difficult things easy. Feelings about being able to do more of something than other people. Feelings of superior strength that you or someone else has.
Dreaming of big muscles on an evil or dangerous looking person may reflect feelings about how dangerous you feel someone else’s power is. Feeling that a problem or enemy is too powerful to overcome. It could also reflect feelings about powerful addictions that are too strong to overcome. Opponents with advantages that make defeating you too easy. Jealousy that others can faster, quicker, or better than you can.