The volume contains the contributions of the 24th Annual Colloquium of S.I.E.P.M. The Dionysian Traditions, which took place in Varna, Bulgaria from September 9 to 11, 2019. The theme of the colloquium is not coincidentally related to the topic of the 9th Annual Colloquium The Dionysius Reception (1999 in Sofia, Bulgaria). The aim was to consider the continuity of research and to ensure its new dimensions. The colloquium demonstrated the multifaceted, advanced development of Dionysius research over the past twenty years. The Corpus Dionysiacum exerted an enormous influence on the Christian cultures of the European Middle Ages, which also had and still has an impact on modern times. Focal points of the medieval - Latin and Byzantine - Dionysius traditions are discussed in detail, previously undiscussed topics and perspectives are presented. A large part of the analyses develop a new approach to post-medieval culture and a clearly defined commitment to the current problems of thought and social life. The profoundly analyzed questions and topics convincingly open new horizons for today’s science.