A Monkish Life is not consistent with Regeneration
It has been granted me to converse with some in the other life who had separated themselves from worldly affairs, that they might live a pious and holy life; and also with some who had afflicted themselves in various ways, because they believed that this was to renounce the world and subdue the concupiscences of the flesh. But most of them—inasmuch as they had thereby contracted a sorrowful life, and removed themselves from the life of charity, which life can only be lived in the world—cannot be consociated with angels; for the life of angels is a life of gladness from bliss, and consists in doing the goods which are works of charity…. These things are related that it may be known that the life which leads to heaven is not a life of retirement from the world, but a life in the world; and that a life of piety without the life of charity, which can only be lived in the world, does not lead to heaven. But a life of charity does,—which consists in acting sincerely and justly in every occupation, in every transaction, and in every work, from an interior, that is from a heavenly origin; and this origin is in that life when a man acts sincerely and justly because it is according to the Divine laws. Such a life is not difficult; but a life of piety separate from a life of charity is difficult; which yet leads as much away from heaven as it is believed to lead to heaven. (HH n. 535)
A Man’s Life and Actions are governed by the End proposed
Whatever has supreme rule in the mind conforms to itself all the thoughts, yea, the minutest particulars of the thoughts.
However man’s thoughts and actions may be varied, which they are in innumerable ways, if only the end proposed be good they are all good; but if the end be evil they are all evil. The end proposed is what governs in every particular thing that a man thinks and does. The angels attendant on man, because they are angels of the Lord, govern only his ends; when they govern these they govern also his thoughts and actions, since these all belong to the end. The end proposed by a man is his very life, and all that he thinks and does derives life from it; because, as was said, they belong to the end. Therefore such as is the character of the end proposed, such is the life of a man. The end is nothing but the love; for it is not possible that man should regard anything as an end but what he loves. He whose thoughts and actions are at variance yet has for his end that which he loves; and even in his hypocrisy and deceit there is -an end proposed,—which is self-love, or the love of the world, and the delight of life therefrom. Hence every one may conclude that such as a man’s love is such is his life. (AC n. 1317)