Bhagawan's Path of Devotion

The three paths which are described in our system, those of Karma Yoga, Gnana Yoga and Bhakthi Yoga, they need to be practiced serially. Therefore the gita starts with Karma Yoga. Now in chapter 7 Bhagawan is instructing us how to practice path of BhakThi, the path of devotion. But before I can start practicing BhakthI Yoga, I have to develop that identification with that Supreme Self. Without knowing that Supreme Self, I will not be able to focus my limited mind onto that Supreme Selfwhich is limitless.