Trivial matters can be elevated only by means of the revelation of secrets of Torah
Devarim betelim, meaning "trivial matters," is a phrase used in classical Jewish religious literature to refer to purely worldly, everyday things that bear no relation to holiness.
That is, "trivial matters" cannot be raised by means of general religious practice such as halakha. This can be done only by means of the secrets of the Torah, when deep study of the internal meaning of its commandments and ideals supplements ordinary religious practice. (For more on the expression "secrets of the Torah," see the commentary to paragraph 21.)
Because study of the secrets of the Torah reveals the light hidden in the depths of the universe, even trivial matters that seem to be insubstantial will be elevated. This occurs effortlessly, as the place of these matters in the scheme of the universe and in the plan of creation becomes clear, revealing the meaning of their existence.
See Sotah 49b. That is, at the beginning of the era of the Messiah (see paragraph 2), classical Jewish wisdom (literally "the wisdom of the scribes," Judaism of the book) will lose its attraction and its freshness; it will fade and rot, unable to manage the elevation of trivial matters.
And therefore many strong personalities will reject classical wisdom, turning their powers and creative energy instead to secular literature and the building of society.
In other words, things that seemed to be insignificant in the period before the light of the Messiah will now reveal their inner meaning and potential. This is due to the fact that the light of the Messiah (see paragraph 21) values things based not on their degree of accordance with the law or formalized sanctity, but on their contribution to the building of the future ideal.
See Ezekiel 47:12. That is, both the results (fruits) and the simple actions (leaves) of these "trivial matters" will be needed and called upon for the general rectification and improvement of the world.