The 'Finally, I Have Them All' meme originates from the hit Disney XD animated series Gravity Falls, specifically during the climax of the episode 'Not What He Seems.' The scene features Grunkle Stan (later revealed to be Stanford Pines) placing the three mysterious journals together to activate a transdimensional portal. It represents the ultimate moment of completion after years of searching. Internet culture adopted this template to celebrate finishing a collection, obtaining a full set of items, or mastering several skills simultaneously. Its versatility makes it a staple for gamers, collectors, and tech enthusiasts alike.