The Mool Mantar opens the Guru Granth Sahib and, by tradition, opens Guru Nanak's own teaching, describing God through a sequence of attributes rather than through narrative or command: one, true name, creator, without fear, without hatred, timeless in form, unborn, self-existent, known through the Guru's grace. Sikh theologians have treated its terse, list-like structure as intentional rather than incomplete, arguing that stacking short attributes side by side communicates something a longer discursive description could not, namely that each quality qualifies and is qualified by the others simultaneously rather than in sequence.
Because the Mool Mantar precedes nearly every major composition in the Guru Granth Sahib in some form, sometimes given in full and sometimes only gestured at by its opening syllable, its wording functions as a kind of theological anchor running underneath the scripture's much longer body of hymns and poetry. Scholars of Sikh scripture have also debated exactly where the Mool Mantar itself ends and the following composition, the Japji Sahib, begins, since the two are printed continuously and the precise boundary carries some theological weight for how the opening declaration is understood to relate to what follows it.