In the classroom, the students were waiting for their teacher to start the lesson when a strange set of school rules suddenly came over the school broadcast.
1: For unknown reasons, the school is in danger and has been sealed off. The lockdown will last seven days, after which it will be lifted. Students, prepare your supplies and do not try to leave the school during this time, or we will be unable to protect your safety.
2: Darkness is dangerous, and light is safe. For your own safety, remain within the light as much as possible.
3: Scissors and nail clippers are dangerous. Do not bring them under any circumstances, or you will be responsible for the consequences.
Hearing these eerie rules, the students were stunned.
Seven days later...
The primordial spirit is one's innate nature. Like an infant, it knows nothing, yet possesses perception and vitality. Everyone has one. Once awakened, it allows one to perceive ghosts, slaughter, the seven emotions and six desires, fissures, the mind, and other forces. These forces are called Principles. Using secret teachings as a foundation, one spreads the Principles throughout the body. As long as the foundation remains intact, the body cannot die. One thus possesses two lives, a body and a foundation. This is Foundation Establishment, the prerequisite for passing through the Pure White Gate.