The chasm of my current distress can be traced to the erosion of eustress, thanks to the 'unatatchedness' currents of eastern philosophy.
Eustress, a term coined by endocrinologist Hans Selye which is defined in the model of Richard Lazarus (1974) as stress that is healthy, or gives one a feeling of fulfillment or other positive feelings. Eustress is a process of exploring potential gains.
The term eustress was first used by endocrinologist Hans Selye in 1975, when he published a model dividing stress into two major categories: eustress and distress. This article was an expansion on an earlier article he wrote, where he discussed the idea of a General Adaptation Syndrome, or a system of how the body responds to stress.
In his 1975 article, Selye talked about how persistent stress that is not resolved through coping or adaptation, deemed distress, may lead to anxiety or withdrawal (depression) behavior. In contrast, if the stress involved enhances function (physical or mental, such as through strength training or challenging work) it may be considered eustress.
This is the type of ‘positive’ stress that keeps us vital and excited about life. The excitement of a roller-coaster ride, a scary movie, or a fun challenge are all examples of eustress.
Eustress is actually important for us to have in our lives. Without it, we would become depressed and perhaps feel a lack of meaning in life. Not striving for goals, not overcoming challenges, not having a reason to wake up in the morning would be damaging to us, so eustress is considered 'good' stress. It keeps us healthy and happy.
Eustress also reminds us that we can view many of the stressors in our lives as 'challenges' rather than 'threats', and have extra vital energy to handle these stressors, without a feeling of being overwhelmed or unhappy. (Read this for more on threats vs. challenges, and find ways to change your perspective.)
That said, while eustress doesn't generally carry the same type of damage as chronic stress, too much eustress can still tax your system.