In 2017, a CHI panel titled "Integration vs Powerful tools" debated whether our relationship with digital technology had begun to shift from interaction to integration. Today, Human-Computer integration developed into an emerging paradigm, rapidly gaining traction and developing a theoretical basis over a number of recent symposiums and publications. However, as more contributions are made to the establishment of Human-Computer Integration, the more its concepts and principles seem to diverge, such that we now find that each theorist talks about something different when they say "integration". Building on the 2017 panel, in this panel, we ask "What is the essence of Human-Computer Integration? And what are its implications for the future of HCI?" This panel seeks to facilitate discourse between leading thinkers from diverse backgrounds with the audience to come to a shared vision and mutual understanding of human-computer integration.