Basically, psychological diseases such as anxiety/depression and phobias/manias may not be regarded as diseases but rather merely as psychological phenomena. This is because of two reasons: 1) they can be experienced by almost all people (then it is quite embarrassing to find all people psychologically ill) and 2) they can happen in varying degrees and in different time lapses.
The origin of psychological disease/phenomenon seems to be the specific set of characters that the person builds up from the very beginning of life and throughout life especially during the first few years. This argument may be supported by the assumption/observation that certain psychological conditions would be experienced by some persons in some life stages but not by others in the same life stages. For examples, anxiety would me more in young adults with little experiences who tend to be sensitive (good-spirited and ambitious) and righteous, while depression may be more experienced by materialistic (intellectual and chance chasing) and self-centred persons.
Such naturalizing of psychological diseases/ phenomena would, from one side, reduce the emotional burden given by those experiences, and revise the significance/role of medical treatment of psychological conditions, from the other side. Indeed, nonmedical or conservative treatment would be the general rule while the medical treatment may be needed only on occasional basis. However, every psychological case should be considered individually and the treatment plan should be, hence, very specific for that person.
As the extent of psychological experiences varies in terms of obviousness/picture, duration and pattern, those experiences may be ordered in a ladder of ascending phenomenal grades. Although that view would implicitly mean a mode of diseases/condition evolution, neither the relay between stages nor the completion of the whole track may be strict.
This scheme sheds light on the importance of the insight of the person as a determinant for favourable/unfavourable psychological path. It implies also the role of the person’s will, i.e. choice – to a certain degree – as to where to direct his/her emotional and spiritual investment.