Hey Girl lyrics

Lets go walking where the boats go by
And watch them sail across the bay
Let me hold your hand in the morning fog
Little child I want to walk your dog

Hey, hey girl
Hey, hey girl
Youre so young
I dont know what to do

And lets go walking up that mountain slope
And look down on the city down below
I will make a fool of you

Hey, hey girl
Hey, hey girl
Youre so young
You make me lose my mind

Hey there go your baby sister

Submitted by Guest

What do you think is the meaning of Hey Girl by Van Morrison?