Bucket diagrams are so expressive, useful, and direct in the message they provide. Yes, these diagrams have everything to do with buckets and the money they contain. While the buckets themselves represent a source or destination, the money represents the financial liquidity. Buckets show items in distribution, they represent the flow of things or display collections of items. An empty bucket can indicate the capacity to which it can be filled. A bucket pouring money in another could represent the distribution. You can have buckets that are full, empty, or somewhat full. And you can move the money from one bucket to another!