My interpretation (or just a rather sensible but unnecessary chain of logic that links together the images in the poem ):
Garden: the world that we fill with human experiences
Eye: our vision of the world.
Reflections: 空,"夢幻泡影"
Music, wind, earth...: Joy, 五蘊(皆空)
The world, a double blossom, opens:
sadness of having come,
joy of being here.
: Duality of the nature of the world as manifested in the nature of humans.
The last line can suggest the ego. Being "lost" in it can be enlightenment (free from it) or falling prey to it. "Center" is very suggestive.
This poem just seems larger than merely about romance.
海子的那首由大處一筆寫盡,很天才,像頓悟。帕斯這首從小處的感受寫,滙聚出整體的意義,很精妙。
個見。