There is no need to argue about ensoulment of embryos. The soul is infused at the conception of a child; and a tiny child - an embryo - deserves the greatest respect throughout it's growth in the womb. It is not God's Will that it be experimented upon - nor that embryos be formed in laboratories.
It is God's intention that babies be conceived in the marriage act: in a lifelong union of love of a man and a woman. The baby is meant to be the 'fruit' of their loving union. It is not God's Will that tiny babies be created as the result of laboratory procedures, outside the womb; furthermore, each little person, however created, deserves to live and not to be thrown away as 'surplus' or 'imperfect'
Some of the moulds that are grown by scientists are life-giving; but others are deadly, and should be isolated. A sort of 'deadly life' grown in the world is the life of a priest who abuses children in his care. That priest should be isolated, not allowed to conduct wicked assaults again.
Every inspiration or movement which goes against God and the Father's Will by corrupting or destroying innocent life is Satanic in origin, even if people in embryo experimentation and related matters believe they are doing good and do not recognise that anti-life actions are evil.
Just as a scientist, using an illuminated magnifying lens, can see hair-line cracks, and other dangers to hygiene, invisible to the naked eye, so the Lord can illuminate our souls in prayer; and the Divine, healing light that shines within our souls when we bring our sins, hurts and problems to God is a powerful means of achieving purity and holiness.
The Lord wants us to look at the reality behind all the new procedures by which some people fertilize human eggs outside the body, and manipulate human embryos in all sorts of ways. At every such conception, a miniature human person is created into whom God infuses an immortal soul, even though it is God's intention the babies be conceived through the marriage act, and not in laboratories; nor should tiny babies be thrown away.
There are scientists at work who are careless about human life, and who think nothing of creating embryos in their laboratories, for experimentation; or they freeze embryos, or destroy them, as surplus to requirements. They forget, or do not care, or do not believe that God gives the gift of life. In rejecting His gift they insult and disobey their Creator. In overstepping His laws, they break the fence which would have saved them from the Abyss.
The Godhead is so holy and ineffable and glorious. The glory of the Godhead is like shards of glass or ice: piercing, powerful, and even painful for those unaccustomed to the light; and we can only enter it with and through Jesus Christ our Saviour and Mediator.
We have the Pope to guide us on modern problems as well as well-known evils. Society is being damaged, as abortion becomes more and more commonplace, just as scientists are confirming what God has told the world through His prophets, His Son, and His Church, for millennia, that each human being, however tiny, is a unique individual. Each deserves to live all the life that has been given, from conception, in the manner decreed by Almighty God.
It is an amazing encounter, when a man dies who has been a scientist, deeply admiring things in the created world, and fascinated by subatomic particles. To meet the one by Whose Mind all things and all living creatures and all things have been designed is - for a believing, prayerful scientist - a marvellous revelation.