PARADOX SPELL

When MIB-Smokey-Flocke tells us that Jacob has stolen his body, his humanity we don't know if it is literal or figurative because both present themselves as supernatural beings.

That being said, Flocke states that he is trapped on the island and wants to go home. He was trapped by Jacob, and he must believe that by "killing" Jacob he can escape this place. However, one would think that is too simple of a solution if MIB has been trapped on the island since the beginning of time.

A higher authority than Jacob probably committed them to the island for a specific purpose. Some commentators believe that MIB is like a jinn, or genie trapped in a bottle (with the island as its cork). Spells, magic, universal quantum physics may be the explanation of how MIB is trapped in his place, but not what is the key to releasing himself.

I think the real trap is a paradox that MIB cannot break. For example, the liar's paradox states: this statement is false. It brings one to an illogical or self-contradictory conclusion. In MIB's case, the key to break his island spell: The Truth will set him free; but his only Truth is in lies. It is a self-defeating prophecy.

Another example: To leave the maze you must get to the End. The Maze has no End.
Trap: No matter what you do to find the end, you can never leave the maze.

And over time, this would be extremely frustrating because it would be the perfect trap.