2 So then let us understand, dearly Beloved, that this parable relates to us all, that is, to the whole Church together, not to the Clergy only of whom we spoke yesterday; nor to the laity only; but generally to all. Why then are the Virgins five and five? These five and five virgins are all Christian souls together. But that I may tell you what by the Lord's inspiration I think, it is not souls of every sort, but such souls as have the Catholic faith, and seem to have good works in the Church of God; and yet even of them, “five are wise, and five are foolish.” First then let us see why they are called “five,” and why “virgins,” and then let us consider the rest. Every soul in the body is therefore denoted by the number five, because it makes use of five senses. For there is nothing of which we have perception by the body, but by the five folded gate, either by the sight, or the hearing, or the smelling, or the tasting, or the touching. Whoso then abstains from unlawful seeing, unlawful hearing, unlawful smelling, unlawful tasting, and unlawful touching, by reason of his uncorruptness has gotten the name of virgin.
Source: Sermons on Selected Lessons of the New Testament (New Advent)