SUNDAR, BĀBĀ, celebrated for his six-stanza composition, the Rāmkalī Sadu, incorporated in the Gurū Granth Sāhib, was the great grandson of Gurū Amar Dās. His father, Anand Dās son of Bābā Mohrī, was a man of a devout temperament. Sundar grew up in an environment of faith and piety and developed deep affection and reverence for Gurū Amar Dās, his great-grandfather. The theme of his poem, Sadu meaning call, is the ascension of Gurū Amar Dās, described in terms of his having been recalled by God Almighty. The hymn stares how Gurū Amar Dās had completely surrendered himself to the Will of the Supreme Being, ever remaining absorbed in meditation on the Name, how he had, through the favour of Gurūs, attained the office of Gurū, how he, at the time of his departure, had appointed Rām Dās his successor and how he had told his family to abide by the Will of the Lord and not to weep for him after him.