Saeed Zarrabi-Zadeh, Ph.D. (2013), is a habilitated lecturer of Islamic Studies at the University of Erfurt, Germany. His publications on Islamic Studies, Sufism and comparative mysticism include Practical Mysticism in Islam and Christianity (Routledge, 2016) and Sufism East and West (Brill, 2019; co-edited with Jamal Malik).Armina Omerika, Ph.D. (2009), is Professor of Intellectual History of Islam at the Goethe University Frankfurt. She has published widely on the history of modern Islam, including Islam in Bosnien-Herzegowina und die Netzwerke der Jungmuslime, 1918-1983 (Harrasowitz, 2014).Thomas K. Gugler, Ph.D. (2011), University of Erfurt, is a member of the Frankfurt Research Center on Global Islam (FFGI) at Goethe University. His monographs include Mission Medina (Ergon, 2011) and Ozeanisches Gefühl der Unsterblichkeit (LIT, 2009).Michael E. Asbury, Ph.D. (2021), University of Erfurt, completed his doctoral studies at the Chair of Muslim Cultural and Religious History. His dissertation is entitled Seeing with the Heart: The Mysticism of an Islamic Sufi Lineage from India in the West.