Most people are familiar with "On Marriage" from "The Prophet", but this piece is is even more passionate and from the heart...

From The Prophet by Kahil Gibran:
On Love

Love has no other desire but to fulfill itself.

But if you love, and must needs have desires,

let these be your desires:

To melt and be like a running brook that sings its melody to the night.

To know the pain of too much tenderness...

To wake at dawn with a winged heart and give thanks for another day of loving;

To rest at the noon hour and meditate love's ecstasy;

To return home at eventide with gratitude;

And then to sleep with a prayer for the beloved in your heart,

and a song of praise on your lips.

Kahil Gibran