A betrothed girl is someone else’s desire that did not belong to a person at all and was not under his Masach (screen). And if he used this desire, it was necessarily in an egoistic way. “The betrothed girl” means a desire that has a common Masach (screen) with some other Masach, and therefore the use of this desire will be most probably egoistic. By being in contact with such a desire, a person “kills” himself—his Masach, tuned for bestowal, turns into reception and breaks.
“Field” is the absence of any external circumstances that could stop a person. In this case, the woman can not resist by herself.
Torah, Deuteronomy 22:26 – 22:27: Whereas to the girl, you shall do nothing the girl did not commit a sin deserving of death, for just as a man rises up against his fellow and murders him, so is this case. Because he found her in the field. The betrothed girl had cried out, but there was no one to save her.
On the girl herself (the desire), there is no sin, but corrections should be performed, because it fell under the use of an entirely different Masach, which broke under the circumstances.
From KabTV’s “Secrets of the Eternal Book” 10/10/16