We have to mold our minds to Srila Prabhupada’s and / or Guru’s words and to mold Srila Prabupada’s and / or Guru’s words to our minds under the influence of the three modes of nature is utter nonsense and represents a sure recipe to veer of course.
Of course this presupposes that Srila Prabhupada words are presented to us As They Are, which is far from being 100% in the case of His Bhagavad Gita. His lectures and letters are obviously 100 % Srila Prabhjupada. And until proven otherwise, we shall assume that His small books, Srimad Bhagavatam and His Caitanya Caritamrita are safe as well.