This way has limitations, namely the weather and visibility must be good. Relatively high speed aircraft requires a considerable distance visibility.And the weather such as rain and fog can cause reduced visibility. Weather conditions for VFR flying with the rules is called VMC (Visual Meteorological Condition).
In its development,aviation technology allows pilots to fly the plane without looking out,just follow the guide instrument on board. How to fly like this is called IFR (Instrument Flight Rules). About the IFR will be discussed at the Intrument Rating.
A student pilot or pilot with a license just PPL (Private Pilot License) is only allowed to fly VFR manner.