Depression is not a disease in the typical sense of the word, but it is dis – ease. I believe it is perfectly logical for any sensitive, smart person without a spiritual perspective in our world to be depressed. Depression and discouragement are really the same thing. If people are not avoiding or repressing the facts about our world environment – discouragement makes sense.
A spiritual perspective is an alternative. From a spiritual perspective there is the remembrance that we are all spirit temporarily on earth. Whether our earth survives, whether people are greedy, ignorant, or selfish is not the point. What is most important is that we learn not to react to negativity and problems, but instead focus on learning the lesson of bringing our best self to life.