Test of the poet is knowledge of love,
For Eros is older than Saturn or Jove;
Never was poet, of late or of yore,
Who was not tremulous with love-lore.
Have you noticed, with whatever quality of love you have experienced, that when true love arises, it opens up both your mind and emotions? It's an openness to whatever is happening.
Love comforteth like sunshine after rain,
But Lust's effect is tempest after sun;
Love's gentle spring doth always fresh remain,
Lust's winter comes ere summer half be done;
Love surfeits not, Lust like a glutton dies;
Love is all truth, Lust full of forged lies.