This is the powerful self-control of an eight-star Transcendent.
Ordinary people can close their eyes and hold their breath, which are forms of self-control.
As a Transcendent, one's self-control is naturally much stronger!
As Su Yu continuously shut off his senses, his spirit gradually became scattered because his mind couldn't find an anchor point.
At the same time, a huge sense of crisis arose in his heart.
A voice kept reminding him, don't continue!
You will die! You will die! You will definitely die!
This is probably equivalent to an ordinary person holding their breath to the limit, and their body telling them to stop, or they'll suffocate themselves!
Ordinary people naturally cannot really hold their breath to death.
Their self-control is insufficient; they would pass out at a certain point and then naturally resume breathing.
But Su Yu can! He can really "suffocate" himself!
Su Yu ignored his own warning and continued to shut off his senses.
