Andrew Solomon 2: Depression, the secret we share

TEDxMet 2013
Andrew Solomon 2: Depression, the secret we share  (script)
Summary
In fact, depression is not known well and people think that the opposite of depression is happiness. However, it's not happiness but it's vitality.
Having depression seems that you start not to be able to do small things that are eating lunch and organizing yourself while thinking that it's ridiculous. You feel yourself doing less, thinking less and feeling less. You lose all interest. It's a kind of nullity but anxieties are set in. It becomes too painful to be alive. It leads to killing yourself.
Moreover, if you have depression, it's probably hidden by yourself and your family won't know it. You can't tell it to anyone. It makes it worse.
Depression is said to be the flaw in love but people confuse about depression, grief, and sadness. Although it'll take time, grief will ultimately solve itself.
However, if you experience a catastrophic loss, its big sadness tends to lead to depression that is much too much sadness and grief.
However, it's looked it small reasons from far place by others.
About treatment, it doesn't figure out that it needs a chemical cure or a philosophical cure though both cures have an each role. Then the speaker says that we should tolerate the vast world of alternative treatments.
It's because depression is braided so deep into you. It can't be separated from your character and personality. However, it's not part of your personality. It happens when the system gets broken. It's only maladaptive for you though shutting out and hiding depression grow it.
Looking at, tolerating the fact that you have the condition and understanding your depression will become the way that you achieve resistance.
The speaker wants to tell us that by vitality, even little of it that you can face the fact that you have depression, it leads to a cure. It's because the opposite of depression is not happiness but vitality. You might be in hell as depression, but thinking about the way to love it and to find joy bravely. Its vitality makes you leave having depression. Don't think that you are not happy because the opposite of depression is not happiness.

Words in this story
solitary / lonely, lonesome   solidarity / unite
accurate /  precise, correct, right
imperative / command, order
implausible / unlikely, questionable, doubtful
impoverished /  poor, poverty-stricken
maladaptive /  it's not able to adaptive