[Xieta]

I think when it says "Get used to it" it actually means "accept it".
As Steve says, "Acceptance means that you perceive reality accurately and consciously acknowledge what you perceive." It doesn't mean you have to be happy with it or agree with it. You just have to know exactly how it is so you can lead your steps where you want.
You're more likely to have a good trip when driving on a bumpy road if you know its cracks and bumps than if you just look somewhere else thinking the road is perfectly ok.