This dream may symbolize feelings of being frozen or stuck in a difficult situation. The intense cold represents a sense of emotional numbness or detachment, possibly caused by fear or trauma. The knocking and pleas for help could indicate a cry for assistance or a desire for someone to break through this emotional barrier. The frozen mouth and inability to move or speak may suggest a fear of expressing oneself or feeling powerless in a situation. The person falling and opening the freezer door could represent a release from this frozen state, but the realization that the person is dead may symbolize a sense of loss or grief. The confusion and disbelief at the person getting up and being alive again could represent a fear of the unknown or a struggle to accept change. The dream may be urging the dreamer to confront their fears and find a way to move forward, even if it feels impossible at first.