Abrupt Recollection in Passing

This is a poem I wrote at work after someone walked by me and I smelt their perfume, or soap or something and it immediately brought up memories of hills during my childhood and then just as quickly they faded away. I think it is interesting how smell can instill such a deeply ingrained memory within us to call up images and feelings instantly just in passing. 

Green hills that seem to fade as fast as they come
I can see them, however
clear, precise, from the smell --
They are real, or apart of who I am
I am only but a memory, or maybe many.