It's a constant practice, checking your reality.

My only wish is that you vote with your head instead of your heart.

I certainly know after Brexit, there were a lot of people who voted because they'd fallen for the scare tactics and in the cold light of the following years, realized their kids can't buy property in Europe and easily work abroad, import taxes had gone up and so on - all predicted, but not considered.

Consideration of the bigger picture rather than voting because your hearts been manipulated by pollies and the media is not the populaces strong point, which is the nicest way I can think to put it.