The way I see learning is that it ought to be divided half time for Physics and half for Gemara. And the way I see doing both is both "Iyun" [in depth and lots of review] and "Bekiut" [to say the words as fast as possible and to finish that book many times. At least four times.
Gemara we already know why to learn. It is a commandment. Learning Torah is not just a positive commandment but to not learn when one can is "bitul Torah" which is a sin. That means to say that even though one fulfills the command by a small amount of learning, but that does not allow one to stop learning if he is not required to do so for "parnasa" [making a living] of other reasons doing commandments that can not be done by others.
If fact Bitul Torah is a concept which is almost unknown.
The Physics is because of the Rishonim that hold it is part of learning Torah. [Ibn Pakuda [author of the Obligations of the Heart, the first Musar book] and others. This is an argument among Rishonim. However I think those that hold this way were the way to go in this subject.]





So my approach is not to emphasize Metaphysics even though the Rambam highly recommended the Metaphysics of Aristotle.  Nor is my approach to recommend learning Rav Avraham Abulafia, or the Ari [Isaac Luria]. Not even the books of the Gra, or Rav Nahman. All these have great ideas, but I do not consider them as something to spend time and effort on.
So I see them as what you would call "reading". That is: they are informative. But not something to be spending time and effort on. Rather,-- they are more for one's "down time." Not exactly to relax--but close.
Some things I just do not see as being all that informative or valuable.