At one point Tom came across some feathers that he instinctively knew had been placed on the trail by Grandfather himself. These he understood to be a sign that all was well and that each of them was on the right path.
Now when I take my walks and find feathers such as these, I recognize them as signs from Grandfather that I'm on the right path and that all is well.
For further inspiration I strongly recommend reading any and all of Tom Brown Jr.'s works, or, go to his website http://www.trackerschool.com/