Sunday At 6pm

I don't know why depression it comes and goes, throughout my whole life
it's something that I've know, familiar to me like a recurring dream
One happy moment, the next I am sad because it grips me like I've never felt
I'm sorry if I did anything, can I be of any help? can I be of any help to you my friend?
We have all felt sad more than once in our lives, the problems we've had but choose not to share
Do some feel it more often than others do? Well if that is true I feel I qualify
because it grips me like I've never felt