One point that becomes clear about the current of the mind is that whatever way it’s flowing, we tend to get bound up with it. We want to protect and sustain a happy state and feel bad about its eventual decline and disappearance; our identity gets based on that state. On the other hand we feel stuck with and desperate about unhappy states. In its fullest sense, liberation …. is a liberation from cause and effect in the mind. It’s a process of mentally, emotionally, stepping back from any state and seeing it just as a state, without reactions and attitudes. This simple skill, which most of us do from time to time, is what we develop in … practice. More radically, it means stepping out of the program that asserts that my life gets fulfilled by having or being some state or another.
Ajahn Sucitto, Kamma and the End of Kamma
Mindfulbalance 
Isn’t it about training ourselves to be happy. To learn to live in the moment. Not the past or future. I live with what I call a joy stealer. She nags, complains and use tit for tat. I use to cry and crawl inside myself. I am applying this live in the moment. Praticing being happy. When she starts naging I smile and let her say what she has to say. I try hard not to react in kind. She is miserable and wants everyone to be miserable too. It’s getting easier for me no to fall victim to her moods. To my surprise she doesn’t fuss as much.