Anticipation is a profound exploration of the concept of waiting for the reappearance of Imam Mahdi (A.S), the prophesized savior in Islamic eschatology. The book delves into the spiritual and philosophical significance of awaiting the Imam’s return, offering an insightful analysis of how this anticipation shapes the moral and ethical framework of believers. Drawing from both classical and contemporary sources, the book highlights the transformative power of this belief in inspiring patience, hope, and steadfastness among Muslims. It explores the periods of Ghaybat al-Sughra (Minor Occultation) and Ghaybat al-Kubra (Major Occultation), discussing how the absence of the Imam has influenced Islamic thought and practice, particularly in the context of leadership and justice. Furthermore, Anticipation reflects on the impact of this belief on individual spirituality and collective social responsibility, motivating believers to live righteous lives in preparation for the awaited savior. The book is essential for those interested in understanding the concept of the Mahdi and its relevance in modern times.