Guru Nanak's principal inheritance from the religious background of his period was unquestionably that of the Sant tradition, and evidence of other independent influences is relatively slight."... [And for the Sant tradition and itself, it] 'owes none of its basic constituents to the Sufis. For Sant beliefs the major source is to be found in the Bhakti movement, with Nath theory entering as a significant source.'

What It Means

This is a placeholder explanation generated by the low-overhead model. It interprets "Guru Nanak's principal inheritance from the religious background of his period was unquestionably that of the Sant tradition, and evidence of other independent influences is relatively slight."... [And for the Sant tradition and itself, it] 'owes none of its basic constituents to the Sufis. For Sant beliefs the major source is to be found in the Bhakti movement, with Nath theory entering as a significant source.'" in the context of "W.H. McLeod, quoted in Ram Swarup, “Hindu Roots of Sikhism”, The Indian Express (6 February 1991); Republished in Hinduism and Monotheistic Religions. 2009. pp. 279-281 ff] , also in https://www.academia.edu/1241470/Common_Features_in_the_Development_of_Three_World_Religions" to mean that wisdom is timeless.