This document provides an in-depth exploration of the method of trisociation, which generates novel ideas by associating three distinct concepts. Trisociation builds upon bisociation, which combines two unrelated concepts. While briefly mentioned previously, trisociation has not been extensively studied. The document aims to comprehensively analyze trisociation's principles, processes, benefits, limitations and applications. It also explores how generative AI can enhance trisociation by suggesting additional concepts or generating new ideas based on given prompts.