Inhibition is a mental process that takes a minute to understand. What might happen is not present in reality. So, the person probably creates a mental image of the change in the material object. The interesting thing about ACL 5.6 is that the material objects must be present. Without them, nothing happens.
The process is even more complicated because the person inhibits the secondary effect. The primary effect is the person's intended cause and effect connection. The secondary effect is a consequence of the primary effect.