Creating paths is the entire purpose in the game and you'll make your first one within a few seconds of starting. The object is to create an uninhibited path from a dropper up top to a collector on the bottom. Paths to U-Dials, the dials that don't go anywhere but instead both collect and drop (depending on their orientation), also count. This achievement is cumulative and may very easily be the first achievement you collect. For help, go into the game settings menu and turn on 'Helper Dots.' Doing so will show a continuous path from a collector up. Keep rotating dials to make a path all the way to a dropper at the top.