To talk about religion and teach the religion to others, is the easiest work.Here every body talks too much.But the most arduous/Herculean task is, to walk on the path of religion,Those we are tremendously Brave ,they can only perform their duties towards religion.That is why the great saint Kabir Sahab has told.-

Kabira Khara Bazar mein liye lukathi haanth,
Jo ghar Jaarey Aapna chale hamare saath."

Meaning-" Kabir is standing in a market, keeping a burning torch in his hand ,
Those who have capacity to burn their house, only they can walk with him."

Therefore religion is not meant for weak people.