A drop in the bucket

The idiom “a drop in the bucket” is used to describe a small or insignificant amount in comparison to a larger whole. It’s like when you have a big bucket of water and you add just a tiny drop to it. That drop doesn’t really make a noticeable difference because it’s so small compared to the entire bucket. When someone says that something is “a drop in the bucket,” they mean that it is a small, insignificant contribution or action in relation to the overall situation or goal. It implies that the impact or effect of that action is minimal or negligible.
Similarly, if you’re trying to clean a large, dirty room and you only manage to clean a small corner, that effort would be considered “a drop in the bucket” because there is still so much more to clean. The Idiom is often used to emphasize the need for larger or more significant contributions or actions in order to make a meaningful impact or achieve a particular goal.