If you do not trust yourself completely, you will just hurriedly go along with whatever happens in all situations. You cannot be independent: all these myriad situations cause you to undergo changes.
If you were able to put a stop to the mentality in which every thought is running after something, then you would be no different from a Zen master or a Buddha.
Lin-chi Yixuan, died 866, founder of the Linji school of Chan Buddhism