Your needs actually reflect human beings' instinctive exploration of “sense of existence” and “emotional perception”, which is a special way of self-awareness. The following provide several safe and constructive suggestions, but please always try step by step on the premise of physical and mental health.： 1. Sensory arousal experiment 1. Immersive artistic experience: VR horror games (such as the "Escape" series) or 4D horror movies, which trigger adrenaline secretion within a controllable range through technological means 2. Taste impact: Tasting super spicy foods (such as ghost pepper products) in a safe environment, the physiological burning sensation will awaken the survival instinct 3. Alternating hot and cold therapy: Enter the 40℃ sauna room immediately after a cold bath at 15℃. This primitive body stress response can strengthen the perception of life. 2. Cognitive reconstruction training 1. Existentialist writing: Record your imagination of death/loss late at night, and re-examine it from a rational perspective the next morning 2. High-altitude transparent observation deck experience: face the high degree of fear under the protection of safety, and observe your physical and psychological changes when facing the abyss. 3. Alone in the wilderness: 24-hour forest camping without electronic equipment accompanied by a professional guide, allowing darkness and the unknown to activate the primitive alertness system 3. Social mirror image observation 1. Participate in voluntary work in the emergency department (training required) and witness the real scene of the handover of life and death 2. Anonymously participate in psychological fear experiments (university research projects) to measure fear thresholds in a controlled environment 3. Try impromptu theatrical performances and randomly select terrifying situations for role-playing Safety instructions： • Mindfulness breathing (4-7-8 breathing method) is required after each experience to calm the body and mind • Establish an emotional safety word mechanism and stop immediately when the discomfort reaches 6/10 intensity • It is recommended to complete the SCL-90 psychological scale self-test before trying to eliminate potential risks This kind of exploration of the edge of existence is essentially an attempt to break through the accustomed mode of life perception. It is recommended to read existentialist philosophy simultaneously (such as Kierkegaer's "The Concept of Fear") to sublimate physical experience into cognitive growth. Remember that the truly vivid survival experience comes more from the creation of life possibilities than the consumption of fear.