the outcome of a merely conventional or "platonic" devotion. In the
troubadour biographies the substratum of historical truth is so overlaid
by fiction, that little reliable evidence upon the point can be drawn
from this source.

However, transgression was probably exceptional. The idea of troubadour
love was intellectual rather than emotional; love was an art,
restricted, like poetry, by formal rules; the terms "love" and "poetry"
were identified, and the fourteenth century treatise which summarises
the principles of grammar and metre bore the title _Leys d'Amors_, the
Laws of Love. The pathology of the emotion was studied; it was treated
from a psychological standpoint and a technical vocabulary came into
use, for which it is often impossible to find English equivalents. The
first effect of love is to produce a mental exaltation, a desire to live [17]
a life worthy of the beloved lady and redounding to her praise, an
inspiring stimulus known as _joi_ or _joi d'amor_ (_amor_ in Provençal
is usually feminine).[7] Other virtues are produced by the influence of
this affection: the lover must have _valor_, that is, he must be worthy
of his lady; this worth implies the possession of _cortesia_, pleasure
in the pleasure of another and the desire to please; this quality is
acquired by the observance of _mesura_, wisdom and self-restraint in
word and deed.

The poetry which expresses such a state of mind is usually idealised and
pictures the relationship rather as it might have been than as it was.
The troubadour who knew his business would begin with praises of his
beloved; she is physically and morally perfect, her beauty illuminates
the night, her presence heals the sick, cheers the sad, makes the boor
courteous and so forth. For her the singer's love and devotion is
infinite: separation from her would be worse than death; her death would