The tempest in my mind
Doth from my senses take all feeling else
Save what beats there. Filial ingratitude!

– William Shakespeare

King Lear, Act 3, Scene 4. Lear says that the storm in his mind keeps him from feeling anything except the torment of how ungrateful his children are. Filial ingratitude is one of the dominant themes in King Lear. In the midst of the storm Lear cannot think of anything else but the turmoil in his head. He is self-destructing into madness here.