I feel like you were saying there is someone you're waiting for who causes you to feel, rather than just waiting for your feelings to return, themselves. The absence of the person causes your heart to feel cold. In the fourth stanza you refer to "it", but in the fifth, you state, "you". Did you leave out a word in the third stanza, the first line? You write in the plural with the word "feelings, but then in the singular with "it".
Did you mean to write it that way? With just a little re-writing, this is an excellent poem. Barbara
If there be grief, then let it be but rain,
And this but silver grief for grieving's sake,
If these green woods be dreaming here to wake
Within my heart, if I should rouse again.
But I shall sleep, .. more..