In fact, if everyone in this world really examines their livings and lives, they will conclude that human society is a chaotic and turbulent world. It is full of diseases and scourges, and in the end, everyone has to face the inevitable destruction and death, and their lives in the world are anxious and irritable. Fortunately, God has given humans a third cognitive function, knowing infinity and producing religion. We are convinced that humans have another ultimate, eternal world that carries all our dreams. ①In this world, everything is tranquil, sweet, and eternal. It is the home of the soul and the harbor of happiness. Coming to this ultimate world has become the meaning of our life and the truth of life. The ultimate world is not an imaginary fantasy world. Humans not only know the ultimate world through the infinite but also know its specific content through many communications between gods and people, namely, doctrines, such as the inspiration of prophets, oracles, hallucinations, and self-spiritual cultivation. The main purpose of this book is not to introduce specific religious practices, such as Taoist cultivation, Buddhist meditation, Christian cultivation, or various religious experiences, miracle hearings, etc. These originally belong to the most important content of various religions but have nothing to do with the theme of this book. I just briefly mention them here without further elaboration. Religious doctrines are embodied in sacrificial texts, folklore, and poems, especially in the scriptures of various religions. Finally, it forms specific iconic teachings through rituals, ceremonies, ways of life, food habits, clothing features, decorative symbols, etc. The doctrines have formed customs and lifestyles with distinctive religious characteristics. Believers are convinced that they can understand and come to the ultimate world through these specific iconic doctrines, which are the intermediary and mediator between believers and the ultimate world. As a result, the secular life of humans is connected with the ultimate world, and the secular life has a sacred meaning and a holy aura. Our anxious and irritable lives immediately have vitality and glory, and our lives are full of wishes and futures. This is where the infinite charm of religion lies, and it is also the reason why it decisively affects our lives.
Due to the limitations of human beings, people can only observe the ultimate world from different angles and understand it one-sidedly, so there are countless religions, countless different ultimate worlds, and countless different customs and lifestyles. Due to the decisive influence of religion on our lives, we can clearly see that even for the same race, their living customs are very different because of different religious beliefs. In contrast, different races are more similar on the ground of the same religious belief. I compare the living customs of Christians and Buddhists, which are more common in China, and with which I am more familiar, to see how different religious beliefs make even people of the same race so distinct. The pious Buddhists worldwide use their hands together as their greeting etiquette, and Christians all over the world use to cross their hearts as their greeting ritual. Buddhists do not kill anything and are vegetarian, and generally do not drink alcohol. Drinking a glass of wine is the last ceremony after Christian worship. This glass of wine represents the blood of Jesus and means that Jesus is in the heart. Therefore, Christianity does not abstain from drinking and is far from vegetarian. However, Christians must pray before each meal and thank the Lord for the food. Buddhists believe in reincarnation, so they release the souls of the dead and do Dharma events.