I'm just a passive fan of Prog Rock and I'm definitely not the biggest fan of Yes . But this is easily my favorite song of all time. It's so beautiful. The section of "I get up. I get down." brings me to tears everytime I hear it and I'm not sure why.
Yes had a run where they had some of the best musicianship I've ever heard. If you were in Yes in 1971-74 you deserve a spot on any top 10 whatever list. Not all their songs in that period hit right, but the ones that do are all time faves.