He is able to fully 'comprehend' [=understand completely] what is happening and react appropriately.
I find his attitude impossible/difficult to 'comprehend'.
They are unable to 'comprehend' what had happened.
(..) I'm not missing that Train. Bing Bong knows what he is doing. He's part dolphin, they're very smart. Well, I guess. Okay. What abstract concept are we trying to comprehend today. - Loneliness. - Hm. I think there is something in there. I'm going to turn it on for a minute (..)2015 Inside Out