The sankirtana devotees are very very dear to Krishna. Because you are doing the field work of book distribution, Krishna has immediately recognised them as true servants. Just like during war time, a farm boy or ordinary clerk who goes to fight for this country on the front immediately becomes a national hero for his sincere effort. So Krishna immediately recognises a preacher of Krishna consciousness who takes all risks t deliver his message.
Preaching means to spread the glories of the Supreme Lord.
“WHETHER MAN OR WOMAN”
In Caitanya Mahaprabhu’s movement everyone is a preacher, whether man or woman, it doesn’t matter… Everyone should go out. – TNOBD Pg 53, Oct 6, 1973, To Karandhara.
Preching means book distribution.
The most important aspect of preaching is to take care of the person very nicely.