- Accept this very moment, and all the moments before this one as unchangeable. Since any additional decision or action will take place in the future, this moment is the only possible state of the world I currently live in. Fate/environment/god/entropy/myself (whatever one believes in) led me here, and it could not have happened in any other way, or it would have.
- What I can have an effect on is the future (as the article says) - I can STRIVE to make a certain improvement or reach a goal.
- Whether or not I reach a goal is almost always not entirely dependent on me, and is therefore uncertain, and it would not make sense to expect it 100% to happen. So I don't fully rely on it, and have a Plan B and maybe C available. Fate/environment/god/entropy always has the last word on my reaching a goal, and since I cannot change that, I also have to accept it.
Not accepting unchangeable situations is IMO a major source of suffering. Finding out what I can or can not, or maybe should not change is an ongoing struggle.