In Aeflow, the brain is a collection of knowledge. Knowledge is a piece of content. You create a brain (collection) and add knowledge to it. Aeflow makes the Embedding of your brain and stores the vector data. Embedding represents words or phrases in a numerical format that computer algorithms can easily understand. Later, when you ask something, the system can give you the most accurate answer in your context.
In Aeflow, knowledge and brains live separately. You create knowledge and then attach them to a brain. You create knowledge once, and you can mix and match to create multiple brains.