I had a very complex debrief about the show afterwards with my friends. Some were horrified Margaret was willing to basically dowery her daughter away for $15k and take the responsibility off her hands. Others were more invested in the thought that she gives Clara a chance at a love that she was never able to gave. Another thought the pony incident was just a delusion and excuse made up by Margaret to justify staying with her husband. What makes the show so wonderful is that all are true. Margaret has sacrificed so much of her life to keep Clara safe, and when she sees an opportunity for her to be happy and be in a stable family outside herself, she is willing to give Clara up for her own chance at self awakening.