It is an arduous process for people to become aware of the ‘One’ that is their core. The gross body is the product of the food consumed. But within, there is a subtler force, an inner vibration named vital air (prana). The mind (manas) within is subtler still, and deeper and subtler than the mind is the intellect (vijnana). Beyond the intellect, people have in them the subtlest sheath of spiritual bliss (ananda). When one delves into this region of spiritual bliss, the reality, the Brahman or the One can be experienced. That awareness is indeed the most desirable. In the Taittiriya Upanishad, while teaching his son Bhrigu the Brahman phenomenon, Varuna says, “Son! Brahman cannot be seen through the eyes. Know that Brahman is that which enables the eyes to see and the ears to hear. He can be known only through extreme yearning in a cleansed mind and concentrated thought. No other means can help.”

- Sutra Vahini, Ch 2.