What does the idiom "rains on our parades" suggest?

The idiom "rains on our parades" suggests that something is happening that spoils a happy or positive situation. It is often used to describe an event or action that dampens enthusiasm or disappointment in a moment that was supposed to be joyful or celebratory. The imagery associated with rain ruining a parade evokes feelings of frustration or sadness because a parade is typically a festive occasion meant to bring joy and excitement. Thus, the correct interpretation aligns perfectly with the idea of spoiling things, capturing the essence of disappointment that accompanies the intrusion of unfavorable circumstances on what should have been a delightful event.