Analysis of To-- Yet look on me

Yet look on me -- take not thine eyes away,
Which feed upon the love within mine own,
Which is indeed but the reflected ray
Of thine own beauty from my spirit thrown.
Yet speak to me -- thy voice is as the tone
Of my heart’s echo, and I think I hear
That thou yet lovest me; yet thou alone
Like one before a mirror, without care
Of aught but thine own features, imaged there;
And yet I wear out life in watching thee;
A toil so sweet at times, and thou indeed
Art kind when I am sick, and pity me.