Vacaspativaibhavam is a modest tribute to the dynamic persona of Professor Vachaspati Upadhyaya whose chequered career spans more than four decades. In this volume, an earnest endeavour is made to collect and recollect his significant contribution to the academic world, both as a scholar as well as an administrator. The first part of this volume carries benign blessings of saints and scholars for the unbound showering of divine grace upon Professor Upadhyaya. Many messages by the dignitaries and copious compliments from well-wishers and friends of Professor Upadhyaya convey his unmitigated commitment to the core human values cherished in his heart. The second section of the volume comprises rich reminiscences penned by a vast majority of his colleagues and students from all over the country. These memoirs, in the form of personal reflections, are richly expressed through the medium of poetry and prose, and reveal the various aspects of the multifaceted personality of Professor Vachaspati Upadhyaya. More than ninety research papers included in the principal part of the volume are not limited to the narrow compartmentalization of a particular subject but cover different domains of Indian intellectual tradition. Authored by a galaxy of scholars, Indian and foreign, these articles not only highlight the new ventures in cross-disciplinary studies, but also emphasize their basic concern with contemporary challenges facing humanity. The readers will relish that contributors to the volume have effectively reflected upon the dialectical depth and thematic width of Indian philosophy, religion and culture enshrined in Sanskrit sources. In fine, the volume in hand promises to provide meaningful material for thought in the fields of Sanskrit and Indological Studies.