We cannot always control our thoughts, but we can control our words, and repetition impresses the subconscious, and we are then master of the situation.
The mind is like a sheet of white paper in this, that the impressions it receives the oftenest, and retains the longest, are black ones.
Well, if storytelling is important, then your narrative ability, or your ability to put into words or use what someone else has put into words effectively, is important too.