I want you to know one thing.
You know how this is: if I look at the crystal moon, at the red branch of the slow autumn at my window, if I touch near the fire the impalpable ash or the wrinkled body of the log, everything carries me to you, as if everything that exists, aromas, light, metals, were little boats that sail toward those isles of yours that wait for me.
Well, now, if little by little you stop loving me I shall stop loving you little by little.
If suddenly you forget me do not look for me, for I shall already have forgotten you.
If you think it long and mad, the wind of banners that passes through my life, and you decide to leave me at the shore of the heart where I have roots, remember that on that day, at that hour, I shall lift my arms and my roots will set off to seek another land.
But if each day, each hour, you feel that you are destined for me with implacable sweetness, if each day a flower climbs up to your lips to seek me, ah my love, ah my own, in me all that fire is repeated, in me nothing is extinguished or forgotten, my love feeds on your love, beloved, and as long as you live it will be in your arms without leaving mine.
I find this poem very touching and interesting. The statement "my love feeds on your love"; shows that as long as his lover loves him, he'll love her too. If she forgets him and does not love him, he'll forget her before she does. Thus his love feeds on her love, without her love, his love will die.
This poem also goes hand in hand with the saying "treat others the way you want to be treated". If you want someone's love and care, you should love and care for them. If you want someone to keep you in mind, keep them in mind.