The sex into which we have been born (assuming that it is physiologically unambiguous) is given to us to be welcomed as a gift of God. The task of psychological maturity”“for it is a moral task, and not merely an event which may or may not transpire”“involves accepting this gift and learning to love it, even though we may have to acknowledge that it does not come to us without problems. Our task is to discern the possibilities for personal relationship which are given to us with this biological sex, and to seek to develop them in accordance with our individual vocations.
Those for whom this task has been comparatively unproblematic (though I suppose that no human being alive has been without some sexual problems) are in no position to pronounce any judgment on those for whom accepting their sex has been a task so difficult that they have fled from it into denial. No one can say with any confidence what factors have made these pressures so severe.
Nevertheless, we cannot and must not conceive of physical sexuality as a mere raw material with which we can construct a form of psychosexual self-expression which is determined only by the free impulse of our spirits. Responsibility in sexual development implies a responsibility to nature”“to the ordered good of the bodily form which we have been given. And that implies that we must make the necessary distinction between the good of the bodily form as such and the various problems that it poses to us personally in our individual experience. This is a comment that applies not only to this very striking and unusually distressing problem, but to a whole range of other sexual problems too.
–Oliver O’Donovan Begotten or Made?: Human Procreation and Medical Technique (Oxford: Oxford University Pres, 1984) which was found here.