Where is that path??

A mere 20 years ago my Dad was visiting, in fact I think he was babysitting my daughter for the week, when I returned home there was a stone bath from my door to the water's edge. I am not sure if he did it under direction from mother or not. Since that time he has not returned to edge it. Year by year the grass grows over the rock giving the illusion of a much smaller stepping stone then I remember. Every other year I tinker at it..........till now. Armed with a knife I attack, cutting, stabbing and pulling the overgrown vegetation. The earth gives way and I am left with a nicely edged and large path....... Now the next question is have they sunk into the landscape or is the soil and grass roots multiplying to give one the inclination that the path needs to be lifted..............Nahhhhhhhh I will just be content to leave it as a quaint little path as it is and a chore that is binannual. Thanks Dad!!!!!11