its just my personal opinion,he had great knowledge and his poetry always had some kind of a message for youth unlike other poets who had nothing to say except pyaar mohabbat and sharaab. Shikwa,Jawab e Shika and Iblees Ki Majlis e Shura can really change your perception about the universe.
i can't really say anything about his earlier days, but i think he was more spiritual in his final years. The fact is that leaders like Quaid e Azam are rarely born.