That's certainly seems to be the argument made here: Typological Portrait of St. John.
The introverted intuitive child can possess the pervasive feeling of not being at home in the world. By nature his intuitive gaze goes elsewhere, while his extraverted feeling and sensation functions which would help root him in the here-and-now remain undeveloped. He can possess an other-worldly nostalgia, and this conviction that his true homeland ties elsewhere can be reinforced by the misfortunes of his early years, which are seen as confirmations that this earthly life does, indeed, have not much to offer. Since St. John's earliest years were marked by genuine tragedies, dire poverty and the lack of any supportive extended family, it would not be surprising if these events resonated in his psychological type and later formed a background to the way he viewed the relationship between the mystical life and daily human existence.The introverted intuition type often excels in academic work, while the inferior function of extraverted sensation can express itself in the kinds of failures that St. John experienced. This is not the result of a lack of manual dexterity or artistic ability in itself, but rather, the inability to focus the attention for any considerable length of time on the external physical work to be completed, especially if it is repetitive.
The tragedy of John's home life could have accentuated his already predominant introversion, his placement in this institutional setting would have only increased this process. He would not be the kind of boy who made friends readily, or could hold his own in a group where the more outspoken and aggressive personalities tend to dominate. His feelings would become submerged. The nuns found him suitable for taking care of the Chapel, but this is the kind of occupation that would tend to isolate him from his companions and the outside world, though it reinforced his religious inclinations.
I don't know does the bolded sound like anybody here?St. John was an excellent student and a meticulous observer of the rule, both qualities that are often associated with his type, but he was also someone who had very definite ideas about his inner vocation. In some way, at some point, he had discovered his contemplative vocation, and having discovered it, was exerting all the energy of the powerful faculties of intuition and thinking that he was gifted with to pursue it. He had no time for anything else, and no inclination, and finally, no way of seeing the exterior effect of this single-mindedness....While many things did not matter to St. John, one thing was of supreme importance: the will of God must be followed in all things great and small, and the rule was seen by him as a concrete embodiment of God's will for the present moment, and thus had an intrinsic connection with his search for holiness. Therefore, he felt compelled, despite his desire to efface himself, to speak out when it was a matter of his inner convictions. His fellow students, no doubt, took a less serious and weighty view of the matter. St. John's strict spiritual interpretation of the rule had a psychological dimension as well. The introverted intuition type often exhibits a meticulous and careful fulfillment of their obligations that can become tinged with scrupulosity. They are far removed from the everyday, normal ways of judging human situations. They can interpret the rule and the wishes of the people in authority in a much stricter fashion than others, and often stricter than the authorities themselves intended.
Concerning the effect of his brutal imprisonment on the development of his type:
Amazingly interesting. St. John is certainly one of my favorite mystics, and I can so readily relate to his Dark Night of the Soul.From a psychological point of view he was plunged into extreme introversion and cut off from the feeling and sensating dimensions, or rather, they became negative realities opposed to his conscious personality. It was as if a nightmare of the introverted intuition type had come true. This type loves freedom and movement, even though it is often expressed interiorly rather than in outer actions. The outer imprisonment would have been much more bearable if it were simply a care of exterior confinement. But St. John's torments went deeper. These were not strangers who were tormenting him, but people from his own religious family. He knew some of them personally, and the superior of the house had been his superior at the University of Salamanca. This superior hammered away at him, telling him that he was disobedient, for he was refusing to obey lawful commands. These tormentors actively played out the role of the negative aspects of his own extraverted feeling and sensation. John had always been concerned with an exact observance of the rule, motivated, as we have seen, by the belief that the rule embodied the will of God here and now. He began to wonder whether he was, indeed, disobedient.