HOW does the life and work of Rothko reflect art as a spiritual process?

WATCH Simon Schama’s Film Rothko 1-4
Then write 150-200 words to the following questions providing specific examples to support the answers
HOW does the life and work of Rothko reflect art as a spiritual process?
HOW are these concepts reflected in his ideas about how art should be experienced and seen by the public?
WHAT feelings do you get from his work, specifically from the murals intended for the Seagram’s building?