Lord Krishna emphasized following Dharma in various chapters of Gita. Artha and Kama are to be within the boundaries of Dharma. As Admn says ultimate purpose is Moksha. Krishna consciousness is a modern age coined by a movement. Not by Gita or Vedas.But what Gita preaches is eternal devotion to the Lord and finally to be one with him. Prasthana Traya – Upanishads, Gita and Brahma Sutra alone are the guides in such spiritual quest. Trust it clarifies
