Anglerfish
A deep-sea fish with a glowing lure — bait dangled in the dark to bring prey within reach of the jaw.
An anglerfish in a dream is the dream's image of bait dangled in the dark to bring prey within reach of a hidden jaw. The fish itself is not visible; only the light is, and the light is the trap. The dream brings the anglerfish when something in your life — an offer that does not name its full source, an attractive small visible thing in a place where nothing else is shown — is functioning as the lure of a larger structure you cannot see. A lure noticed and not approached is the dream affirming the right caution. A lure followed, with the jaw now in view, is the dream noting that the bright small thing was real and was also the visible part of a much darker design.