(Admin note: Technical issues on Kiln blog were fixed today, just in time for the next Bible lesson.)
This is a siege prayer. Whether the occasion is a literal siege matters not; there are many contexts that feel just the same — there is no where to turn for escape from the sorrow, and nothing to occupy the long hours to take your mind off the things. It begins very much like a time of personal trial, but the psalmist notes that Zion is also in need of deliverance. Thus, the heading that notes this is a prayer of the afflicted is almost understated.
As is often the case, we are humbled by the soaring imagery, even in mere English translations. The first two verses cry out for God to hear, at one point using a figure of speech that asks God to lean down close to hear because the cry is so feeble.
You can read the rest of this study by clicking this link to Kiln of the Soul blog.