The Teacher has said, "Validate the Fa with reason" (From "Rationality"). How do we achieve real rationality then? I would like to share my understanding based on my own experience.
I went to Tiananmen Square once, but before I achieved the purpose of validating the Fa, I ended up in a police van. When I distributed flyers or hung banners, I often thought that as long as I could give away the flyers or display the banners, I had done my job. I even used the excuse that "the Teacher will make sure that people with predestined relationships will see them" to cover up my own attachment. Actually, some jobs could have been done better with greater attention to detail. But because of this attachment, many jobs were not done well, and we did not achieve the goal of validating the Fa, at least not entirely. Underneath these thoughts, I saw my selfishness. Because of this attachment, my heart was not very pure and clear when I was doing things for Dafa; nor was I very rational. As a result, the effect was not very good.
As I understand it, in validating the Fa, we can only become more rational as our hearts become more and more pure.
In "Lecture at the Western United States Fa Conference," Teacher said, "As you know, a Buddha or a God can give up his life for living beings and for the interest of the universe -- they can give up anything, and remain unperturbed nonetheless." Now I have come to understand. When we validate the Fa, we should be solely focused on benefiting others and positioning ourselves within Dafa. Only then can we reach true rationality, because that is the state of our original natures.
This is just my personal understanding during this period of time. Please correct me if anything is inappropriate.