sentences:  Nirankaris strongly oppose representing the "formless" God with any image, and believe that the true Sikh faith is based on "nam simaran" (remembering and repeating God's name).They believe in living hereditary gurus from Baba Dyal Das lineage, and that the Sikh scripture is an open text to which the wisdom of their living gurus after Guru Gobind Singh can be added.Nirankaris believe that human guru to interpret the scripture and guide Sikhs is a necessity.