BABAR VANI (Babar\'s command or sway) is how the four hymns by Guru Nanak alluding to the invasions by Babar (1483-1530), the first Mughal emperor of India, are collectively known in Sikh literature. The name is derived from the use of the term in one of these hymns: "Babarvani phiri gai kuiru na rod khai Babar\'s command or sway has spread; even the princes go without food" (GG, 417). Three of these hymns are in Asa measure at pages 360 and 41718 of the standard recension of Guru Granth Sahib and the fourth is in Tilang measure on pages 72223. Zahir-ud-Din Muhammad Babar, driven out of his ancestral principality of Farghana in Central Asia, occupied Kabul in 1504.
SATI or sachch, Punjabi form of the Sanskrit satya or sat, lit. truth, in the philosophical sense is essential and ultimate reality as against inessential or partial truth. Rooted in Sanskrit as meaning "to be, live, exist, be present, to abide, dwell, stay", satya means " true, real, pure," as also the "quality of being abidingly true, real, existent." Satya or satyam is a widely used term in the philosophical thought of India. It signifies eternality, continuity and unicity. In the Upanisads sat (truth) is the first of the three essential characteristics of Brahman, the other two being chit (intelligence) and anand (bliss). In Vedanta philosophy, the one permanent reality, Brahman, is called Sat, while the phenomenal fluxional world is named asat (nonreal).