I do it regularly when I start to plan a totally new project. I will lead you through the exercise with an example. When I started to invent this example, I had not a single clue, what will be the outcome. Do not think about to seriously whether the first expression is really the central issue - we are approaching a creative process, and we do not want to rank now, what is important or not. Please leave your critic outside the room for the next hour.
Structure is the death of creativity.
Now any other person has an association and puts it straightforward to the board, connecting it with the center key word with a line. The next person continues. She could put new categories on the board or elaborate on the word clients . She could also add some drawings. There are no rules for Mindmapping Eventually, the group writes down all its associations and intuitions.