Jot carries a second, more specifically institutional meaning in Sikh history, applied to the succession of the ten human Sikh Gurus. Sikh tradition holds that the same single spiritual light passed from Guru Nanak through each of his nine successors in turn, so that each new Guru was understood not as founding a new teaching but as the same light continuing in a new body, a doctrine usually summarized as ek jot, one light. This is the theological basis for treating the compositions of different Gurus, written across roughly two centuries, as a single consistent voice within the Guru Granth Sahib rather than as the separate teachings of ten different founders.
The doctrine reached its most consequential expression in 1708, when the tenth Guru, Gobind Singh, declared before his death that Guruship would pass not to another human successor but to the scripture itself, the text thereafter known as the Guru Granth Sahib, and to the collective body of the Khalsa community. Sikh teaching treats this as the light's natural culmination rather than its end: having been carried through ten human lives, the same jot was transferred into a form, the scripture, that could no longer die and could not be claimed by any single family or lineage, closing the line of human Gurus permanently.