When the apostle Paul wrote of the depth of the Macedonian Christians' poverty (2 Corinthians 8:2), he chose the Greek word Bathos, which was commonly used to speak of extreme depth, such as the deep sea. We might readily recognize its derivative bathysphere, "a strongly built steel diving sphere used for deep-sea observation (Webster)."
Depression might be described as a "bathyspheric state of mind." That's how I'm feeling. As if I had stepped off the edge of the Mariannas Trench and I'm going down, down, down. The same brain that experienced joy last Saturday is sliding into darkness today. Why is that? How can that happen? Are the neurotransmitters in my head taking a vacation? Has Serotonin and Norepinephrine slipped into an idle mode? My brain, and what is happening in it from moment to moment, is a mystery only heaven can solve. Knowing that doesn't keep me from becoming frustrated and saddened.
I have a confession to make. I sometimes look at someone who has a physical disability and wish that I could trade. I might change my mind the moment that the trade is made, but the grass seems greener. The problem with having a mental disability is that most people can't see it. Therefore, they think that it doesn't exist. Countless times, I've had someone say to me, "You sure don't look depressed."
As people peek into the coffin of a person who has committed suicide, do they say, "He/she sure doesn't look depressed?" I had a first cousin who was 19, a straight A student, humorous, popular, and engaged to be married. One day, his fiance stopped by his apartment and found that he had shot himself. Even if they had known, people would probably have discounted his depression, because he seemed to be leading an idyllic life. According to the adage, "Looks are deceiving." Even though taken out of context, it seems that Jesus' words are still true. "Having eyes they do not see."
Sometimes the world does not see because it does not look.
["I'm so low, I could do a ten minute free-fall off the edge of a dime."]