General Meanings:
When you are dreaming of trying to find the right answer to an addition case, it represents how difficult and hard is going to be for you while you will compete with your competitors. If you want to achieve the task you always wanted to reach, make sure you are working hard enough.
If you see a miscarriage in an addition case, it represents that you will be the first one to find out about your competitors plans, and you will be the one who will fulfill it.