A crucible in a dream is a symbol of intuition and creativity.
If you dream that you are mixing something in a crucible, you could be using your intuitive or your creative powers.
Dreaming of a crucible can mean that you are relying too much on logic in order to solve a problem, and that you should pay more attention to what your intuition is telling you.
If you dream about a crucible, it can be a message that you need to be more emotionally connected to the people around you and more receptive to the nonverbal signals that they are giving you.
Mixing medicine in a crucible in a dream can be a sign that you want to use your intuition to help others.
If you dream that you are mixing a magic potion in a crucible, you want to solve a problem with minimal effort