We do find this concept in Davening. "Adam Yesodo Mei'afar Ve'sofo Le'afar, Be'nafshi Yavi Lachmo, Mashal..." and "Mu Uni..." , but I think that the main focus of there stanzas is to portray the greatness of Hashem versus the lowliness of humans, and that we don't have the ability to sustain ourselves and we plead that Hashem help us. Regarding the Musser aspect, I think (I didn't hear this from Daas Torah, just my own thought) that this is still befitting Musser for conceited people. For people who think they run the world, who think themselves immortal. The absolute abiss could serve as a reality check, to hopefully bring the high flying egos back into the realm of our world. It will hardly cause them to become depressed, but most probably rub off just a drop. But the same result would surely not materialize from their hearing the silky smooth and positive-evoking songs that the rest of us thrive from.