ejb626 said:
On a side note, why the hell is Lust considered a Sin anyway isn't it natural for a species to want to reproduce off-topic I know but just an observation.
*dusts off Catechism*
Basically, the Catholic teaching on this goes as follows (simplified, obviously, because otherwise this would take even longer).
There are four types of love:
Philia, the love of friendship;
Storge, the love of family,
Eros, the love of romance, and
Agape, an all encompassing general love which can be translated as a number of things, but is probably best defined by John 3:16.
Out of these, the one we're interested in is Eros. Now, Eros is romantic love, but, and this is the important bit, it does not have to be sexual. It is also used to describe the love philosophers have for truth, etc.
Popular conception is that the Catholic teaching is that sex is inherently sinful and so on: nothing could be further from the truth. On the contrary, to quote from the Catechism of the Catholic Church: "
Everyone, man and woman, should acknowledge and accept his sexual identity." The previous Pope also went on record as saying that a man has a duty to his wife to bring her to orgasm during intercourse.
The point being that human sexuality is seen as a God-given gift to humanity, and like all of God's gifts, it should not be abused. It is cumulation of a relationship bound by Eros and holy matrimony, and should be used for its intended purpose, which was, as you stated, "to reproduce".
We now move on to Lust. Lust is defined as the "
disordered desire for or inordinate enjoyment of sexual pleasure. Sexual pleasure is morally disordered when sought for itself, isolated from its procreative and unitive purposes." This is considered a sin, as it shows a disrespect both for others and for God, by objectifying them and treating his gifts with contempt.
As La Divina Commedia was written under the influence of a Catholic society, this is presumably what Dante would have considered Lust to be, and written accordingly.