The quote uses humor to provide perspective on sadness. "Whenever you feel sad" acknowledges emotional lows. "Somewhere in this world" alludes to a vast context. It suggests finding solace in the relatable image of someone making a simple mistake.
The quote emphasizes the universality of human errors. It underscores that mishaps are common and often comical. "An idiot pulling a door that says push" symbolizes trivial errors, invoking a lighthearted mental image to counterbalance moments of sadness.
In essence, the quote encourages a lighter outlook on life's challenges. It offers a playful reminder that even in tough times, there's a shared human experience of mistakes and foibles. By invoking laughter, the quote suggests that sadness can be tempered by a sense of commonality and humor.