What does trust in the world really mean? Is this a simple belief or a subjective feeling? I propose to consider in this article trust in the world from the point of view of a scientific approach. Trust in the world opens up our ability to relax and explore life. It is also normal not to trust, but this should not limit your life, plunge you into constant and obsessive fear. The experience of trust is laid in the earliest period of life and is closely connected with the world around you - people, nature, social system, culture, power. Trust involves trusting that the world and the people in it will not intentionally harm or threaten you. That their verbal and non-verbal messages will be clear and unambiguous. That you can find understanding and support if necessary. A feeling of security when, in the context of reality, nothing truly threatens your safety. Trust in the world does not mean that you absolutely believe that other people will not intentionally harm you. This means that you know that there are different people in the world, but you trust yourself and that there are ways to take care of yourself even if you meet people who want to harm you. Take the example of the zebra and lions from the animal world. The zebra's trust in the world does not lie in the belief that lions do not exist. The trust is that the world gave her everything to save herself from the lions. That there are other zebras who can help her. This is a basic sense of security built on the experience of elders and her personal experience. For people, the mechanism is similar, with the exception that people are able to comprehend what is happening to them, as well as slow down the process of restoring a sense of trust and security. The little zebra, having survived the lion attack, learns from the experience and learns to defend itself. In humans, the mechanism is similar, but the social system and brain structure are much more complex, so people can get stuck in traumatic experiences instead of adapting and at the same time maintaining a sense of security. All this happens due to low social support and strong individual competition. Trust in the world also manifests itself in the fact that you believe that there are people who care about your needs. That the experience that happened to you is possible in this world where there are zebras and lions, but you are able to take care of yourself, find support and move on. Trust in the world is laid in the earliest period of life; it depends on early life experiences and the environment in which we were raised. Numerous studies have shown that close and safe contact with the mother immediately after birth, a long period of breastfeeding, and sufficient attention to the needs of the child from significant adults forms in children a stable production and good sensitivity to oxytocin, the hormone that makes us feel safe. If at some period of life, especially in the earliest years, we experience an acute, traumatic experience in contact with people on whom we depended, then such trauma can create a disruption in the production of oxytocin and sensitivity to it, which prevents us from entering into close and trusting contact with other people. It is oxytocin that helps people trust more and interact with others more easily. Also, disasters, accidents, natural disasters and any emergencies can leave their mark on the feeling of safety and trust in the world. While it is not always necessary that you have experienced such an experience yourself, witnessing something like this can also be traumatic for many. When we trust the world, we feel confident that we can rely on other people and that the world, in addition to danger, is full of opportunities . We are open to new experiences and ready to take risks. Trust allows you to build meaningful and long-lasting relationships and navigate social interactions without constant fear and suspicion. Trust is a critical foundation for healthy emotional and psychological functioning. And the basis of trust and calm is the healthy production of oxytocin. Trauma can lead to!