The magic power usually concentrated solidly in one place (probably the dantian?) is scattered throughout my body like soup.
When using magic, you need to structure the concentrated magic power like pulling thread.
But now I could control the scattered magic power throughout my body very finely.
If magic power is electricity, and magic is using that electricity to make light and move machines.
Originally you need to gather overflowing magic power to make safe and sturdy virtual power lines.
But now there was no need for that.
I could freely manipulate the scattered weak magic power.
The crystal covering my body acted as a medium for magic power.
That's all the explanation I could give as a liberal arts major.
Actually it was all just what Pelerian told me.
"It's the same reason crystals are put on staves. Originally crystal is a medium that processes and amplifies magic power without loss."
