A jellyfish is a free swimming marine animal with tentacles and stinging cells. A jellyfish could represent hidden hostility or beautiful situations that are overshadowed by a harsh reality.
Positive: Dreaming of a jellyfish could represent that God looks at you as being beautiful because He created you in His image.
Negative: Dreaming of a jellyfish could represent deception because of their beautiful looks, yet poisonous and deadly sting. They could also represent shyness or timidity.
(Psalm 27:4; Mark 12:10; Psalm 78:49).