The joy of finishing a puzzle is a feeling of satisfaction and accomplishment. When you put in the effort to solve a puzzle, your brain releases dopamine, a neurotransmitter that produces a sense of pleasure and reward. This feeling of pleasure can be quite addictive, and as you approach the final stages of completing the puzzle, the excitement and anticipation build up, making the moment of finishing the puzzle all the more satisfying.
However, the sadness of having to take the puzzle apart to gift to a friend can be bittersweet. On one hand, you're happy to give the gift to your friend, knowing that they will enjoy solving the puzzle as much as you did. On the other hand, taking apart the puzzle can be a difficult and emotional process, especially if you've spent a lot of time and effort working on it.
Despite the sadness of taking apart the puzzle, the joy of gifting it to a friend can be just as rewarding. Sharing the puzzle with a loved one allows you to share the experience and the sense of accomplishment that comes with solving it. Plus, you can always start a new puzzle and experience the joy of putting the pieces together all over again!