Real or illusion?

Shortly after, there appeared a magic circle where Yichen was standing and soon glowed up releasing a dazzling azure light from it.

Yichen's eyes instinctively blink at it.

His hands blocked those dazzling lights.

A while later, the dazzling lights slowed down and he soon found himself standing alone in an ice-cold field.

This coldness was severe that even his natural yin body couldn't sustain it nor the yang in him could ward it off.

Cold winds blew from all sides and the temperature dropped to the lowest point. Yichen was left freezing there. His thin body was trembling with the biting cold.

Unable to move an inch, he stood alone and was lost.

The effect of the biting cold had simultaneously brought an effect to his current body as well.

His physical body temperature had rapidly fallen and was freezing.

If this went on then he would shortly be frozen into a statue.