Experience can be divided into appearance and reality. Appearance refers to the changing objects we perceive, while reality is the constant sense of 'isness'. We often overlook the background isness because we are focused on the changing objects. Although it may seem simple, it is not. But understanding this concept can help us navigate our experiences.
Swami Sarvapriyananda teaches Chapter 2 (Verse 16) of the Bhagavad Gita. This series of talks unfolds the highest truths of Vedanta through the study of "The Song of God".