This document defines spiritual intelligence as the intelligence required to find meaning and purpose in life. It discusses various types of intelligence, including intellectual, emotional, and spiritual intelligence. It provides definitions of spiritual intelligence from researchers Zohar and Marshall, and outlines 15 dimensions of spiritual intelligence grouped into 5 clusters: ultimate reality aspects, personal aspects, social aspects, holistic aspects, and life/death aspects. The document also discusses principles of spiritual intelligence, paths to attaining higher spiritual intelligence, and ways to enhance spiritual intelligence.