In both of these lessons, Rabeinu introduces the lesson with one of the interactions between Rabbi Yehoshua and the sages of Athens, which Rabeinu goes on to explain this Gemara differently:

Torah 26: Rabeinu explains where the tzadik, who constantly prays with self sacrifice, must specifically concentrate on the parts of prayer where he’s tested with foreign thoughts. Why specifically then? Because those foreign thoughts are actually sparks of holiness in disguise, that need elevating and come to the tzadik for help!

torah 27: Rabeinu delves into the concepts of peace, song, the voice, the concept of the Radiant Face, and tikkun habrit - all these concepts are essential in order to bring the world as a whole to come and serve G-d in unison… to essential bring all the goyim back to HASHEM.