Thank you for this!
As one who has been in and out from under a 'depression cloud', I certainly know the feeling of 'emptiness' that can settle in..... A writer could equate this feeling as that of 'writer's block'...... it just 'ain't there'.
I've heard things said such as "If you've prayed twice for the same thing, you've already prayed once in doubt"......
And others sometimes imply that prayer has to somehow be politically correct...
But, in my humble opinion, I truly believe "PRAISE" to be the way to go.
Sing Praises....'Dance' Praises.....
....and if STILL that 'emptiness' is there, or if I'm too down and out to have the 'energy' for that,...or I've sparked a pain flare from trying to 'dance'

......I never go wrong by simply crawling up in my Father's Lap "Abba Papa".....and don't say anything at all.
Just curl up in His Lap.....and cry if we must. Those tears will pretty much say it all to Him.