A Course In Miracles

"A Course in Miracles" ACIM is a monistic school of thought, meaning it only believes the absolute and infinite God as Real. It (rightly) considers all else in form as Maya, Illusion. 

This book is a complete self-study spiritual thought system. As a three-volume curriculum consisting of a "Text", "Workbook for Students", and "Manual for Teachers", it teaches that the way to universal love and peace through forgiving others. The Course thus focuses on the healing of relationships and making them holy.