Auffassung [v] (die ~), Begriff [m] (der ~), Verständnis [o] (das ~) {zn.} apprehension
notion
comprehension
sense
realization
Leider war er etwas schwer von Begriff.
Unfortunately he was a bit slow of apprehension.
Auffassung [v] (die ~), Wahrnehmung [v] (die ~) {zn.}
Würden die Pforten der Wahrnehmung gereinigt, so erschiene dem Menschen alles wie es ist: unendlich.
If the doors of perception were cleansed everything would appear to man as it is, infinite.