Revelation 1:5 (DRB)
1 And I beheld, and lo a lamb stood upon mount Sion, and with him an hundred forty-four thousand, having his name, and the name of his Father, written on their foreheads. 2 And I heard a voice from heaven, as the noise of many waters, and as the voice of great thunder; and the voice which I heard, was as the voice of harpers, harping on their harps. 3 And they sung as it were a new canticle, before the throne, and before the four living creatures, and the ancients; and no man could say the canticle, but those hundred forty-four thousand, who were purchased from the earth. 4 These are they who were not defiled with women: for they are virgins. These follow the Lamb whithersoever he goeth. These were purchased from among men, the firstfruits to God and to the Lamb: 5 And in their mouth there was found no lie; for they are without spot before the throne of God.
While "who were not defiled with women" precludes a purely metaphorical meaning, the proper understanding, I think, is that which takes into account the objective and ideal kind of Christian 21:27 by whom the whole of the redeemed are here called; so that whereas some of the redeemed falter, the redeemed as a whole are nonetheless called by the term 'saints' and 'virgins' for the reason that it is their calling to be such.1 Pt 1:15; Heb 12:14; 2 Pt 1:10-11
There is also the fact that the saints, or, the redemmed who end up in heaven, it is true, were not defiled (where "were defiled" implies a finality, or describes the end of the damned in contradistinction to the saints triumphant) 2:10 by women unto damnation.
Being carried away by the world is typified here by the example of giving in to the lusts of the flesh, and going after women. This leads to death.Rom 8:13 The elect, by contrast, have not given into such, but are typified rather by following the Lamb, Jesus Christ, wherever He goes.Jn 10:27 And have become victorious.Jude 1:12 That is,
"And in their mouth there was found no lie; for they are without spot before the throne of God." cf. Eph 5:27; Jude 1:24
In other words, they should be taken literally, as describing the elect, who by definition, were destined not by compulsion but by foreknowledge and the plan of God as a whole, to inherit salvation, where 'virgin,' 'blameless' and 'followers of Christ,' describes the kinds of people who are true Christians, in an objective sense.Eph 1:4