Toshi represents the process of handing down the teachings of Buddhism from a teacher to his students and from those students to their students in the manner similar to that of the Olympic Torch Relay, and also means history books describing the history of that tradition.
燈史は、師から弟子、そのまた弟子へと、まるで聖火リレーのように燈（仏法）を伝えるという、仏法の継承の流れを指し、その伝承の歴史が書かれた歴史書の事も指す。