Belief systems are organized sets of principles or tenets that guide individuals or groups in understanding the world and their place in it. They can encompass religious, philosophical, or cultural beliefs, influencing values, behaviors, and decision-making. Examples include Christianity, Buddhism, and humanism. These systems often provide answers to fundamental questions about existence, morality, and purpose. They can shape social norms and community practices, fostering a sense of belonging among followers. Belief systems can evolve over time, adapting to new information or societal changes while maintaining core principles.