Luffy’s True Dream isn't to find the One Piece... it’s to HIDE it again
I'm a bit late watching ep 1088 and i don't know if this idea has been discussed before, but I'm gonna say mine.
i searched online and found that most people think Luffy wants to throw a party or go to the moon, but I think his dream is much more "Pirate-like." I believe Luffy’s true dream is to re-hide the One Piece and start a New Era of prank.
The biggest clue here is that Luffy knows this dream even when he was a child. So it isn't something super technical or complex. It's one that he thought funny.
Here is why this fits the specific reactions we've seen:
Shanks: When Luffy told him his dream as a kid, Shanks cried and gave him the hat. Why? Because Luffy didn't just want to be Roger; he wanted to ensure the "Spirit of Adventure" never dies. It’s a selfless, yet incredibly pirate-y goal.
Ace and Sabo: They laughed and called it "childish." To an adult, finding a treasure is the end of the journey. To a child, the best part of a game is playing it again. Hiding the treasure is like resetting a playground.
IUsopp: Reacted with "That’s impossible!" because hiding the world's most sought-after treasure from the entire World Government and every pirate is a logistical nightmare.
Brook: "you certainly know how to entertain"
Sanji: "hey maybe there's something wrong with his head"
Luffy: "maybe it's possible one I'm king of the pirates"
The "Laugh Tale" Connection: Roger laughed because he realized the treasure is a "joke" (or maybe not) that keeps the world moving. If Luffy finds out the One Piece is meant to bring people together, what better way to do that than by giving the whole world a common goal to chase forever?
Conclusion: Luffy doesn't want to be the "King" to rule; he wants to be the "King" because the King is the one who sets the rules of the game. He’s going to reset the clock and make sure the "Romance Dawn" happens over and over again.