One of the devastating effects of depression is a gradual and ever increasing loss of a sense of one's own worth or value. As a depression deepens, the world without becomes very unappealing. No activity particularly attracts. Often the company of others brings distress and pain.
People begin to avoid and shun one's presence.
No one wants to hear about darkness and gloom and yet this is all one has come to know. As outside circumstances become less and less bearable, a person's inner sense of value or worth diminishes. When someone feels worthless, no amount of argument can compel this individual to see the world differently. This person may have accomplished much in life. All of these achievements seem to be nothing.