Each bani that makes up Nitnem has its own distinct compositional history, and knowing it explains why the morning discipline reads the way it does rather than as an arbitrary anthology. Japji Sahib, the first composition in the Guru Granth Sahib and the piece that opens the morning recitation, is attributed to Guru Nanak, the founder of the Sikh tradition, and functions as a compact statement of core theology, the oneness of God and the nature of the divine order, making its position at the very start of both the scripture and the daily discipline a deliberate structural choice rather than a coincidence of ordering.
Jaap Sahib, recited second, is attributed to Guru Gobind Singh, the tenth Guru, and consists very largely of a rapid, rhythmic sequence of divine names and attributes with almost no narrative content, a composition whose sound and momentum are frequently described as being as central to its devotional effect as its literal meaning. The set morning discipline is timed deliberately for amrit vela, the hours before dawn, on the reasoning, stated repeatedly in Sikh devotional writing, that the mind is calmest and least distracted by worldly concerns in those hours, making the fixed early timing as much a part of the prescribed practice as the specific texts recited, and Sikh teaching on Nitnem consistently treats the discipline of rising at that hour, rather than any flexibility about when the prayers might otherwise be fitted into the day, as inseparable from the practice itself.