The song is indeed so simple that there seems no need for explanation. My wife's name is Anne and I suppose I could transpose Sandy by Annie. Oh by the way I love Annie's Song by John Denver because I love my own Annie. Sentimental stuff, but I,m sure that Harry intended this song to be just that and we all know who Sandy is anyway.
Incidentally anyone coming to Harry's music for the first time should check out the Graham Nash version of this song if you can find it. It is also excellent. Indeed this song means the world to me.
Sandy is the seashore
And Sandy is the sea
Sandy is the clear blue sky
Or so it seems to me
Yes I see her everywhere
In everything I see
She can turn to anything
That she would like to be
Sandy is the summer's day
She laughs inside the brook
Sandy is an autumn moon
She shines down when I look
Sandy is a cozy fire
On a snowy winter's night
And Sandy is the soft spring rain
In the early morning light
Sandy is my mirror
There are secrets in her eyes
And every single morning
She dawns a new disguise
She has caught the mystery
Of all that's wild and free
Oh yes, I see the world in her
For she means the world to me