To take off in both an airplane and helicopter, you point your nose as much as possible into the wind. (Because the helicopter has no need for runways and taxiways, this step is more easily and efficiently accomplished in the whirlythingy.)
In an airplane you accelerate until the machine will fly, then pull the nose UP.
From a hover in a helicopter you push the nose DOWN to accelerate.
Knowing that going through translational lift the nose will try to pop back up, you are prepared to keep it from doing that.
If you don't physically nudge the nose down, you won't accelerate and take off.
You DO want to take off, don't you?!