I've adored this episode ever since I was too young to fully understand it, even if I couldn't say why. Now, almost 50 years later, the answer is clear. Not just for the universal romantic implications, which make me go a big rubbery one... The score for Metamorphosis is also exquisite, as are the sets. Where on Earth (or space) did the Trek set designers come up those striking background colors, wafting with fog? Whatever asteroid the Companion and Cochrane live on, it sure looks gorgeous. Also a shout-out to childhood fave Glenn Corbett, who freaked me out in an old 1973 sci-fi TV movie called Stranded In Space aka The Stranger (made infamous as an MST3K episode).