Currently a student. I was having a rough day getting my approaches right. Paying too much attention to my speed and such and coming in too fast anyway. On the next round, still in the downwind, my instructor reached over and turned the brightness on the display down to zero. It's an all in one Garmin setup so I was instrument blind - no altimeter, airspeed, tachometer, nothing. I pulled my eyes up, looked out the window, said "thanks" and flew the approach correctly. VFR flying is mostly about the V. Look out the window, feel what's happening, hear and feel the engine power setting, know where you are in relation to everything. It's supposed to be a visceral experience. Instruments are important, but so is knowing how to fly in the sense that a bird knows.