Read "The Garden of Dreams" at The Eldritch Dark:
This poem was unpublished and uncollected during Clark Ashton Smith's (CAS) lifetime. It expresses a theme that CAS has previously addressed, that of the impermanence of beauty and the fleeting character of natural phenomenon.
The poem is interesting in that it does have a clear narrative, but other than that, I can't find much to particularly recommend this poem. Of the thirty-odd early poems by CAS that I have read so far in my more-or-less chronological journey, "The Garden of Dreams" is one of the least interesting, since CAS simply re-visits a theme that he handled with more skill in "The Butterfly".