Inner process- How disease is formed

Our ancestors lived in alignment with nature. Hence, they were healthy. They created rituals and processes for next generation so that as we follow those rituals, we will decode the mystery. With time, rituals got distorted. It is not easy to attract a disease. We have to be out of alignment for a very long time to attract disease. Nature keeps bringing us back in alignment every night. Is this possible for us to decode the mystery of lifestyle of our ancestors and lead a healthy life?