The Perilous Fountain with the Charter of Love

He knew not what cure to seek
original: "guerison." In the context of medieval romance, the "cure" for the sickness of love was often the mercy or "grace" of the beloved.
For a sickness so sudden.
There was neither pulse nor vein within him
That was not violently shaken.
A pale face and a cold sweat
Revealed the great torment within him.

¶ He recovered his spirit a little
And sighed deeply.
Then a great pity for him took hold of me,
Seeing how he struggled to find his voice.
At the end of his sigh, he said: "Ah,
God, how quickly my senses are transformed!
I saw an evil sight which has so worsened my state
That I am stripped of reason."

¶ "Often," he said, "a great sigh
Drawn from the very depths of the heart
Makes the sickness sleep a little
And lessens the pain.
And therefore, under such a color,
original: "couleur." In medieval rhetoric, a "color" is a figure of speech or a literary device used to cloak the literal meaning in allegory.
My darkened heart shall speak darkly—
Be it wisdom or folly—
original: "folleur." This refers to the state of being "out of one's mind," a common trope where the lover loses the guidance of Reason to the whims of Desire.
Through figures and in secret."

¶ Nature, by her decree,
Granted to the human creature
Liberty, freedom, and power
original: "franchise." While it means freedom, it also implies a noble or generous disposition of the soul.
Over the senses; this is a certain truth.