Recurring themes are lust and cruelty. How he feels relates to what he feels. How to cope with a world so revealed is the question of the play. Subplot of Gloucester is an intensification, a projection of Lear on a smaller plane. Gloucester learns to suffer, and to feel and in feeling to see.
Life is a meaningless comedy of pain.
Folly is a word with different meanings depending on your standpoint of the speaker. How to effect personal renewal. The theme of King Lear is an enquiry into the meaning of this journey, into the existence, or the non-existence of Heaven and Hell. They kill us for their sport. Shakespeare's King Lear p. 25.