Temperance

(I don't think this is a formal poetic form, but could be called a tetrina.)

Prefer moderation to temptation,
high virtue to profane sin.
Indulge infrequently in loud singing,
so in heaven to find your star.

But if moderation guides as a star,
sometimes give in to temptation,
and sometimes revel in roaring singing,
and forgive yourself rare sin.

Because abstinence always is a sin:
no resistance earns you no star.
Especially if your pride is singing,
for self-love is too temptation.

So be moderate too in temptation.
Experience your share of sin.
Give your senses time for joyous singing.
Light eyes with the shine of a star.

The highest star up has known temptation.
The angels singing have known sin.