Rationalize Depression?

I’ve tried to understand and rationalize depression but I’m not certain it (depression) can be rationalized by the very nature of what it is. The feelings of sadness can be normal but sometimes when those feelings go beyond a quick moment here and a moment there, it’s time to wake up and take a closer look at it. I won’t try to make sense of it here or help you to make sense of the bleakness but I do know there are times the weight is surprisingly limited and occasionally nearly gone. Different things can trigger “up” times and for some maybe nothing triggers a stabilized moment but when it occurs, seize the opportunity and take advantage of it! It’s during these times I would like to take a closer look.
Much can be accomplished during these limited windows of “up” times toward the breaking out of the “blackness” or "bleakness" as I’ll refer to it for now. I realize that that last sentence probably read like a complete mindless mental piece of jargon but it sums up what I’m trying to write in a nutshell. During UP times; those feelings of stability, one should use this time wisely to attempt to overcome the blackness or at least minimize it before it returns. It’s not easy to do this and I speak to myself first when I say it but the thing I want to point your attention to next MUST be done during UP and DOWN times. What is this you ask? Pray. That’s right, cry out to God for a way through the blackness and be thankful all the time. I'm sure many of us do the first part anyways whenever something sad happens....we might pray. Pray all the time. Pray during the UP times and be thankful at all costs. Take careful notice and attention of your thankfulness level during the BLACK or DOWN times. I’ve seen a trend in my prayers during UP times and those DOWN ones. I’ll be feeling awful and things will be BLACK in my mind and so I get angry, frustrated and upset and then maybe I’ll cry out to God for help to put and end to it....…the end. Next, I’ll be feeling stable and maybe today is actually looking UP overall so then I’ll throw a prayer out telling God I’m thankful for my food before I eat and for a couple aspects of my life that are ok.....the end. I think you get the picture.
Feeling Stable/Good= lapses in prayer, neglect of prayer completely, rushed praying and Feeling Bad/unstable=prayers of: Help me I’m dying!
Ok….together we can try to change that after you’ve read this so prayer looks closer to something like this:
Feeling Bad/Unstable=Prayer of genuine thankfulness (not in the circumstance necessarily) but for knowing Christ and what He has done in the whole scheme of things and adding a prayer of helplessness with the genuine desire to serve Him during this time.
Feeling Stable/Good= Prayer of genuine thankfulness and helplessness. Prayer for God’s help which only He will provide and a desire to serve Him during this time.

Finally, don’t forget to read the Bible.
If you have difficulty digging into the Word on any given day, then perhaps getting a copy of an encouraging biblically sound devotional to read every day is a great start to daily Bible study. There are many to choose from. I recommend one which includes a further study section such as is found in the devotional Drawing Near by John MacArthur (Free Daily Reading). If you know of one which has encouraged you to dig into the Scripture, I would be glad to post it on my website.

Devote yourselves to prayer; stay alert in it with thanksgiving. Colossians 4:2