Summary: The SRI AUROBINDO Birth Centenary Library Volume 5 discusses various aspects of society and human unity. The text emphasizes the importance of spirituality in human life and the necessity of a spiritual transformation. It delves into the challenges and dangers of pursuing unity, highlighting the inadequacy of the state idea and the need for a higher principle of order beyond artificial constructs. The text also explores the impact of commercialism and socialism on society, cautioning against the dominance of economic motives over spiritual growth. Additionally, it discusses the historical development of democratic tendencies in ancient civilizations like Greece and Rome, pointing out the difficulties in achieving free federation among communities. The text concludes by pondering the potential challenges and benefits of a future world-state, contemplating the prospects of administrative unity, law, and policy as humanity progresses towards a global civilization.