From MC's perspective:
Perception Room:
The staff gave me an access code. After verification, I entered the room. From the outside, the room is no different from other practice rooms.
But inside there is a dim light illuminating the place. The door behind me closed automatically.
A few seconds later,
The illumination increased a little bit.
At the time, I got this wonderful feeling. I want to be immersed in this feeling. Suddenly, I sat down cross-legged on the platform.
I closed my eyes and began to focus on this feeling.
Slowly, I found myself in a shadow environment. But I quickly understand this is not my real body.
My real body is focusing on the wonderful feeling. A thought rose in my heart. I decided to cast the magic spell.
"Gravity Field"
A gravitational field began to appear around me. The process was slow. However, I found that I can control the mana output.