Spiritual power generally has two developmental directions.
The first is telekinesis, which Su Yu is quite skilled at.
As a Mechanic, when creating machines, he often doesn't need any tools or melters. He can directly use spiritual telekinesis to decompose and reforge various materials. With a mere thought, the machine is completed, making it incredibly convenient.
The second development direction is a pure Spiritual Domain, such as hypnosis, illusion techniques, mind reading, etc. This is somewhat similar to the data field, but also different.
Data and spirit, after all, have some distinctions.
The Ghost Emperor specializes in the second type, focusing on spiritual hypnosis, manipulation, illusions, and so on.
This kind of spiritual power targets only the spirit, making it challenging to have any impact on physical reality.
