You'll find that so much shelter is already there when you remember my instructions. I've asked you to please distribute Srila Prabhupada's books, and have given so many other supporting instructions in my lectures. You should understand that those instructions are just as much directed to you as those given directly to you. And by acting upon them, you will gain the strength that you need to continue with your service in book distribution.
Collected Letters: Volume 2 Preaching and Book Distribution