General education as part of Torah study

I understood that it is possible to study Torah not only through the Torah transmitted from Sinai (for example, through the Talmud) but through my own interpretation. Let's say I study Descartes' words about the Godhead - I study on a Torah basis, that there is a God, and therefore the engagement in this philosophical literature is Torah study (in Gebra). My question is what about study that does not bring me directly to a Torah basis but only indirectly, such as the wisdom of the soul, psychology.
Ostensibly, by understanding the soul, one can better understand the legends of the sages. But this is very indirect and not direct, because in study I am only concerned with understanding the person's cognition and emotions and not with Torah understanding. So ostensibly, it is not about Torah in Gebra but rather a means to Torah, which is indeed important but is not included in the commandment of studying Torah, just as my sleep at night is not considered Torah study because through it I will study more deeply the next day.

Studying some field in order to understand the sagas of the sages is at most a mitzvah device. As you wrote, you also eat breakfast and sleep so that you have the strength to study. That does not make eating and sleeping Torah study. Torah study is just something that is itself Torah.
And as for the sagas of the sages, I wonder to what extent their study itself is Torah study (perhaps in a gebra).