More than diamond

Farewell, my art who is too dear to possess
And my love is not enough to express;
Though I loved you, I told you not–
That you were my joy in every spot. 
You were the theme for my every song
The soul–I wanted to touch for so long;
I shall wait for you at the other end
For I was mistaken, your worth is more than diamond. 
Your silence speak of 'forget me' and 'goodbye'
"Don't fear, because I will"–say I.