@The Monk Hi. I won't go into the question about who I think is enlightened but I will offer this essay: What Is Enlightenment? http://infinitelymystical.com/essays/what-is-enlightenment.html. Also, you mentioned listening, rather than reading. My mentor is Timothy Conway and I have made over 75 hours worth of audio recordings of some of his satsangs, all available for free here: https://drive.google.com/drive/u/0/folders/0B63GUZPUWajeUjdyZXgxa3hKV2s. You may enjoy his website: http://www.enlightened-spirituality.org/ or my website: http://infinitelymystical.com/
Perhaps this might be a good place to start, my 3-page essay: The Loving Heart of Enlightenment. This is an overview of spiritual awakening in simple, clear English: http://infinitelymystical.com/essays/the-loving-heart-of-enlightenment.html