*Notes: You have given us very sage words in this piece. I would put your quotes from other authors in italics and center them on the page. This is up to you though, because the designation of a quote is accepted and written in many different ways. I have often visualized my life as a roller coaster. I have also drawn on the idea life is a game, where the rules keep changing. I have included a line-by-line review below. Other than a couple of things marked I could find no other errors. Very well done.
Red - changes needed
***Inspiration comes from many sources. Just wandering outside, drinking in the ever-changing beauty of God’s world around me,
oft times (one word) inspires me. The chirping birds and meowing of neighbors’ cats, or the heat of the sun on my arm might cause my brain to start spewing out endless words, "prose art" a friend called it recently. Reading the Bible or great classical literature or the works of famous poets might also cause my hand to perform in a writing frenzy.
***She also said that there would be downward slopes in our lives, times of true trials, perhaps depression and fears, or the deaths of those close to us. Having gathered strength on even ground and
after having rejoiced after climbing treacherous rocks, the depths of despair and the downwards slopes were handled easier.