Their inspiration was Ibn Sina, known as Avicenna in the West, a preeminent 10th-century polymath from Bukhara known as the father of modern medicine because he recognised the link between mind and body.
医学百科 The Medicine Book (Big Ideas Simply Explained)
At the age of 18, he successfully treated Nur ibn Mansur, the Samanid Sultan of Bukhara, which gained him a position at court and access to the extensive royal library.