You can compare it to dreams: you have a very specific and individual pictorial language that you either accept or that you can translate rashly and wrongly. Of course, you can ignore dreams, but that would be a shame, because they're useful.
Gerhard Richter, Dietmar Elger, Hans-Ulrich Obrist (2009). “Gerhard Richter: text : writings, interviews and letters, 1961-2007”