The word "movement" points at the movement of the mind (heart). When nothing bothers one's mind, there is to be no divination.
When someone is bothered by something, his mind sends a strong message to the Universe, which is considered an "intelligent entity" in metaphysics. The Universe will send back a reply of guidance. A diviner is someone who can pick up the message and is versed in interpreting the message. It is, however, not fortune-telling.
A journalist asked me whether I have divined for the outcome of the lawsuit over Nina Wang's estate. As I am not interested in who will win the lawsuit, there is no movement in my mind. Therefore, I cannot do the divination. If either party requests me to do the divination, then the message is strong as there is movement of the mind of the enquirer. However, as I am an expert witness in this litigation, I cannot be the diviner because an expert witness is not supposed to do anything in favour of any party. To divine on behalf of someone is to ask the Universe to give guidance to the enquirer. Therefore, an expert witness cannot divine for any party.
It is a common mistake to view divination as disclosing the outcome. It is, in fact, not a game to satisfy one's curiosity. Divination is to ask for guidance from the Universe to obtain a favourable outcome.