David Bentley Hart (b. 1965) is described as “an American polymath whose work encompasses a wide range of subjects and genres. A prolific essayist, he has written on topics as diverse as art, literature, religion, philosophy, film, baseball, and politics. He is also a writer of fiction.” Religiously speaking, he is a “convert from high-church Anglicanism to [Eastern] Orthodoxy.”
In this short video clip he beautifully describes some of the limitations, challenges, philosophy, people, history, and mystical experience involved in knowing about God versus knowing God in direct mystical union.