3rd years - Moving into applying those techniques to achieve that state of clear and focused mind even while not meditating (or maybe call it an active meditation) - Students will begin to try to apply medication techniques while doing other things.
4th years - Are working on maintaining the applied activate techniques under significant stress. (People intentionally trying to distract you, during simulations, etc)
If you have any questions in particular or need clarification please feel free to ask!