The early Sufis led an austere, simple life and conversed with people in their dialect, Hindawi or Hindi. These Sufi saints made themselves popular by adopting musical recitations called 'Sama', to create a mood of nearness to God. Many saints like Nizamuddin Auliya adopted Yogic breathing exercises, so much so that the Yogis called him a Sidh or "Perfect". So all the given statements are true.