The best of things I find in Bihangams is their humility, and eagerness to help, and really impressive daily schedule.
The philosophy of being brahmchari for an entry criteria to sachkhand sahib during regular days is somewhat not ok. Also, I was reading a book on these sants, and mostly they contain the chamatkaars instead of actual biography sort of things. Well then I know little abt great people, and Perhaps, I dont have much information about sikhism itself.