lose one's way

It is easy to lose one’s way in the climate conversation.

But to return to the prairie, it is an awful place to travel in alone; it is so easy to lose one’s way. 

Yet it is instructive even to him, for the frequency of rain and mist and the paucity of landmarks which can be seen more than a few yards off, coupled with the necessity of constantly watching the ground, render it one of the easiest places in the world in which to lose one's way in any but the finest weather.

"He's no doubt afraid that I shall lose myself," said she, "this is all so vast that it would be easy to lose one's way."

Nothing, indeed, is more common than to lose one's way in the steppes, nor is it at all necessary to that end that one should fall out of his sledge.