I do not expect there to be any trouble by the time this reaches you, but the letter is just to confirm a point.
Truth operates unspent. This is why the idea of Truth, the consciousness of Truth, cannot be exhausted. The world’s revolution is not a cause: it is effect. Revolving round the world is not a cause either. To experience broader views is effect, and effect cannot have an effect!
All that is good in your travels are the views of divine Love, and they are always here, not there. Belief says you move from place to place. Understanding tells you that you are immovably fixed in Principle, and so dwell as central stillness round which revolve all things in the system of your own being. I think you will find Ret. 88:28 helpful.