Ronda Brainskrit is the secret. This secret Krishna is talking about. Nistya Ina Yokta, Dhyayoga, Nervind Najayata,. Two points I will quickly make here and stuff. One is an amazing point. It is that look all of these yogic practices, Ashtanga Yoga, culminating in Samprak Gath Samadhi - it is awfully difficult to meditate. And even your Advaita Vedanta saying to realize I am Brahman so much of Sanskrit words and logic and argumentation and subtle thinking gives me a headache. Then here is a way out. This comes from Ashtavakra. Don't wait for realization