The doctor feels that in order to cure lady Macbeth, spiritual healing is needed as there was no medical cure for her. Actually, the doctor believes that Lady Macbeth is suffering from troubles in her mind, which is keeping her from sleeping soundly.
The Doctor claims that Lady Macbeth will have to erase these thoughts herself.
The doctor realizes that what ails Lady Macbeth is not physical, but instead mental and only she alone could provide the cure for herself since it's her soul that needs something divine, not a physician.<span />
