Barclay James Harvest - Pools of Blue 
A proper vintage psychedelic ballad with cymbal swells and strawberry mellotrons doesn't necessarily have to do much too get my attention. Here we have a song that went unreleased in its day, but was dug out in 1991 to glide out into a very different world than it had been born in.
The thing that amazes me about psych-pop is how it presents such a transportive experience in such a small capsule. Staying true to its pop side, there's no time to waste in getting you hooked in to a pleasant melody. Staying true to its psych side, the perspective feels warped and the sounds may as well be a dream. Glad someone finally found it.