The following is an example of a fictional belief system design, focusing on the core principle of ”isolation to maintain purity". Please note that this design is only an academic creation and does not promote xenophobic or extremist behavior in reality. --- ###**Name of belief system: The Order of Sacred Barrier (The Order of Sacred Barrier)** ####**Core doctrine** 1. **Sacred pollution theory** Believers believe that the soul will be polluted by “unclean energy”, which exists in the thoughts, objects, and even the breath of all unconverted people. Contact with the outside world means the fall of the soul, which eventually leads to eternal exile. 2. **Dualistic view of the universe** The world is divided into “sanctuaries” (closed communities of believers) and “rotten soil” (outside world). The rotten soil is transformed by the wreckage of the ancient Cthulhu after its fall, while non-believers are the unconscious puppets of Cthulhu. 3. **Prophecy of salvation** The doctrine claims that when the number of believers reaches the “pure number” (such as 144,000 people), the sanctuary will sublimate into an eternal paradise, and the rotten soil will be annihilated together with the non-believers. --- ####**Social structure and Precepts** 1. **Absolute isolation mechanism** -**Geographical isolation**: Believers live in a closed “dome sanctuary” and maintain their survival through subsistence agriculture and internal technology. -**Contact ban**: Talking to non-believers, touching or using their belongings is considered a felony. -**Virtual purification**: Necessary external information needs to be sterilized by the ”filter whisperer" priest before it can be disseminated. 2. **Identification system** - Believers wear silver rings inlaid with holy stones to symbolize insulation from external energy. -Newborns need to pass the “blood cleansing ceremony” within 72 hours, otherwise they will be deemed to be carrying contaminated genes and abandoned. 3. **Hierarchical monitoring system** -**Watcher**: Responsible for monitoring the boundaries of the community and using non-contact weapons (such as sonic repelling devices) to expel approaching non-believers. -**Confessor**: Ensure the purity of believers' thoughts through regular spiritual reviews, and violators will receive “memory burning” therapy. --- ####**Rituals and symbols** 1. **Eclipse purification ceremony** A collective ceremony is held every solar eclipse, where believers gaze at the sun through a prism, believing that the light at this time can burn down latent polluting particles. 2. **Silent communion** Food needs to go through a triple blessing, and speech is prohibited during meals to prevent sound waves from carrying external energy and mixing in. 3. **Mirror burial ceremony** The body of the deceased was enclosed in a mirror coffin, symbolizing that his soul had been reflected back to the sanctuary, and his body was completely isolated from the rotting soil. --- ####**External Strategies and contradictions** 1. **Disguised as a missionary** A few "shadow walkers" were trained to imitate outside people in appearance and speech, secretly recruiting potential converts who met genetic criteria. 2. **Internal conflicts** -**Reformists**: Advocate the creation of “perfect human beings” through genetic screening to replace inefficient physical isolation. -**Doomsday faction**: Believes that the rotting soil should be actively destroyed to accelerate the realization of the prophecy, and has repeatedly planned attacks against the outside world. 3. **Existential crisis** Inbreeding has led to a high incidence of genetic diseases, forcing the order to secretly kidnap outside doctors, but their beliefs have been shaken by exposure to pollution. --- ####**Psychological influence** 1. **Collective fear projection** Believers' fear of non-believers is transformed into compulsive cleaning behavior of “tiny pollution” (such as foreign dust). 2. **Cognitive dissonance relief** Any disasters (such as crop failures) are blamed on “undetected pollution infiltration”, not on the order's decision-making mistakes. 3. **Utopian fantasy dependence** Believers experience the beautified “future paradise” through virtual reality technology to compensate for the depression of real life. --- ####**System fragility** -The younger generation is exposed to external information through the dark Web and secretly forms a “wall breaker” resistance organization. -The self-sufficient system relies on rare components provided by the outside world, and economic sanctions may lead to collapse. -The core doctrine cannot explain the undifferentiated existence of “external matter” such as cosmic radiation and microorganisms. --- This design aims to explore the operating logic and internal contradictions of extremely closed communities. Healthy communities in reality should be based on openness, tolerance and critical thinking.