Sifrei mussar and Halacha suggest strongly that a person set aside time to study the simple meaning of the words of davening. These sefarim recommend imagining taking a test in Beis Din shel ma’ala, covering the meaning of words said thousands of times in a person’s lifetime!!!
Interesting anomaly: The poskim speak out that although the very kedusha of a Shul or Beis Medrash is probably ‘only’ miderabonon–but the obligation to have respect and awe of these mekomos and to act accordingly there–is d’o’raiysah!!!