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.
(..) - and was dead." - And behold of the life for ever more. I warned you, Holmes to accept that this was beyond your control. beyond what your rational mind could comprehend What if this, is the after life that you're having. I want you to bear witness. Tomorrow, at midday, the (..)2009 Sherlock Holmes