With the rapidly progressing fusion of the real and cyber worlds, the manner of symbiosis among people and between people and machines is changing significantly. Information and communication technologies will make it possible to gently guide the behavior of people and groups toward a better future and shared emotions and to enable people and machines to work together through more-natural and complex interactions. An overview of the research being conducted by the Symbiotic Intelligence Research Project toward this future vision is given in this article. © 2021 Nippon Telegraph and Telephone Corp.. All rights reserved.