It is unlikely we will ever find the meaning of eternal love As the essence means..
In fact if we ask a poet this will not we get a true answer except only admiration implied from the face of the poet.
Only a person who feels eternal love in himself who will understand, but he will never be able to explain to anyone with all the oral and beautiful sentences of the poet though.

Indeed we have felt a deep love in the heart, there is a feeling that we do not understand the shape and we never know to explain it to anyone.
So continuously about the meaning of love is not intermittent for anyone trying to give meaning to it.
So this life ends and the world, the sky of all beauty will crumble to collapse into dust, love remains a mystery..?