@Reni. Its all about trust and purity, its true that no one can analyze/justify it. I am not a scholar/philosopher, but at first always scale him positively, keep balance and then time will tell you truth about him. For me its a very natural way... you can only achieve it by having a practical attitude which always demand time, patience and straight forward decision power.
Arrow goes forward only after pulling in to backward. Bullet goes forward only after pressing the trigger backward. Every human being will get happy only after facing the difficulties in their life path... so do not afraid to face your difficulties. They will push you forward.