Currently, the poor state of public mental health is evidenced by a record abundance of suicides, a high number of addictions, physical, psychological, emotional, sexual and other forms of violence, domestic violence, lack of social tolerance for vulnerable groups, etc. Today, these highly relevant psychosocial problems require more than just medical interventions, which is why the redevelopment of mental health centres, the abandonment of care homes, and the need to solve aging issues while preserving mental health are increasingly relevant. The fact that today’s medicine by conventional principles is not capable of ensuring the implementation of the principles of holistic health and it is not even its function (medical staff). The project offers a comprehensive coverage of the phenomenon — the project proposes scientific research, justification and development of a unique product — a model of human health well-being in mental health that will be synchronously integrated into the concept of holistic medicine. Psychosocial deviation could therefore be dealt with in parallel not only in hospitals, mental health institutions, but also through approved methodologies and specialist inventories, the regulation would safely continue psychosocial work involving the animal: a dog, horse or dolphin. At the same time, the project aims to look at a reciprocal perspective, i.e. to develop a measurement of the situational well-being of an animal involved in the therapeutic process, which has not yet been developed in the world. In this way Lithuania would be unique in Europe, as the state would finance the scientific path of complementary methods — the approved methodologies would be used safely to address the most vulnerable groups of society and their psychosocial problems.