Thousands of years before the introduction and the development of spiritual intelligence, Lord Krishna in the Bhagavad-Gita had discussed about the spiritual intelligence that the present day researchers are talking about. Spiritual intelligence provides us with complete personality and truthfulness. It is the intelligence of our spirit. By the help of this intelligence, we contemplate over the basic questions of our life and reshape our answers. To resolve the conflict arising in the mind of Arjuna, Lord Krishna discussed about the four dimensions of conflict and awakened his soul through spiritual discourse. Spiritual intelligence is the fine-tuning of intellectual faculty and this is nonphysical and inspirational in nature. The Bhagavad-Gita teaches this wisdom. This paper has a review of literatures on spiritual intelligence and uses hermeneutics a qualitative research methodology, which is the interpretation of an ancient or a classical literature.