You put the terrain between yourself and your opponents to avoid attacks.
Benefit: If you take two actions to move or a withdrawal action in a turn while starting or ending your movement in either naturally occurring difficult terrain (bushes, brambles, etc.) or a space with a natural object providing at least partial cover (a tree, rock, etc.), you gain concealment until you attack, until you move out of that space, or until the end of your next turn, whichever occurs first.
Pathfinder Roleplaying Game Ultimate Wilderness © 2017, Paizo Inc.; Authors: Alexander Augunas, John Bennett, Robert Brookes, John Compton, Dan Dillon, Steven T. Helt, Thurston Hillman, Eric Hindley, Mikko Kallio, Jason Keeley, Isabelle Lee, Jason Nelson, Stephen Radney-MacFarland, Alex Riggs, David N. Ross, David Schwartz, Mark Seifter, Jeffery Swank, and Linda Zayas-Palmer.