We studied the modality of reconstruction in the depressive patients whose premorbid personality presents ‘immodithymia’. The patients try to pursue the reconstruction limitlessly in obsessive ways. That is, there is no discharge from their reconstruction, and the limitless succession of reconstruction supports the patients’ existence. The hindrance of working for limitless succession provides the soil from which depression arises. The limitless reconstruction reflects an aspect of the deterioration of the depressive existence that is the loss of temporality or the dehistoricalization. On the other hand, when we consider the basic structure of manic-depressive psychosis under the concept of the excessive identification of the inner attitude, we can position the deterioration of our patients’ existence between that of melancholies and that of manics.