Killing the body of unborn children produces a lot of suffering within incoming souls, which is why abortion is a terrible crime against the Holy Spirit.

If you want to know how consequential abortion is, imagine what would happen to the life, trajectory, and karma of an individual who is murdered. What are the possibilities of a person, their spiritual and psychological development, whose life is terminated? Imagine if such a soul could find and practice gnosis. What incomprehensible suffering to deny that to an Essence!