My very dear John and Nicky,
Thanks very much to both of you for your service. It is very kind of you. Of course, it is not an easy job. Here I would like to express what the great yogi Milarepa said:
Ha Ha! The meditator meditating on the rock and the benefactor offering food have an auspicious arrangement to achieve enlightenment together… Ha Ha!
It is exactly the same in your case, with both of you offering service to the meditators, which gives them a chance to continue their retreat. This retreat is not just focusing on breathing, and watching where thoughts are going and what they are doing; it is not only that. They are meditating on lamrim, on the whole path to enlightenment, especially bodhicitta.
With much love and prayers...