Cyclical Aspects of Human Life

I have probably already said this but it bears repeating; Frye is the most difficult author to read but also the most rewarding. I am still reading Words with Power at my tortuously slow pace but am finding so much meaning in every page. In the latest section that I have read I found one quote very interesting. "Human life is not a straight line but a sequence of cycles in which we get "up" in the morning and "fall" asleep at night." I had never thought of life as a cycle in that sense before. I had always thought that life was a completely straight line before. Life is then similar to the way Dr. Sexton describe the Bible's cycle. There is cycles within the Bible but the Bible itself is essentially a straight line; just like every day is a cycle but life is a straight line. Going further with the image of life being a cycle, one could imagine a cyclical staircase to visualize whether one was going up or down. Frye talks about the four levels of the world. The top level is the presence of God, a metaphorical heaven. The next level is the Garden which does not exist physically but is a place of the state of mind. The third level is the level that we posses; the physical environment that we live in. The last level is the demonic level that came into existence after the Fall. Before reading Frye's thoughts on this subject, I had always imagined three levels of existence: Heaven, Hell, and Earth. To stretch this thought even further, people say that you have to work to get to Heaven, which makes sense if thinking of life as a cyclical ladder between all the levels of existence and to go up is to reach Heaven.
When considering the cyclical and straight aspects of life, it occurred to me that there is more than one ladder that humans climb on everyday. Going with Frye's thought, people climb or go down the four levels on a daily basis but we also climb ladders at work, our age, and anything other context of our life. I had never before consciously thought of how many times I imagine things as an up and down type ladder in my life. It feels like every context of my life I am trying to work up towards something. Frye also explains why we think in the manner of climbing as humans. He says that because "man cannot fly, and finds climbing the easiest metaphor for raising himself, whether physically or symbolically". This makes complete sense with life. Why would anyone want to work towards something that is on the same level as they are already on?