Pursuing either positivity (enjoyment, pleasure, luxury, etc.) or negativity (anger, punishment, vengeance, etc.) causes struggle and stress. Both are very unstable. Neutrality (contentment, balance, selflessness, etc.) seems to be the least stressful, most stable path.
Western psychologists, whose young tradition often copies Buddhist techniques like mindfulness, charge sometimes hundreds of dollars an hour to teach people how to overcome their own suffering.
Buddhist monks/nuns, whose traditions have thousands of years of the kinds of “evidence-based experience” that Western psychologists brag about, do the same thing for the mere cost of putting a little food into their bowl.
The easiest way that I find to quiet the mind is to want to have a quiet mind, to value the ease and openness of it, and to choose to make only as few thoughts and feelings as necessary. Making thoughts and feelings, running around doing things, etc. requires energy and struggle. To feel less tired and stressed, minimize the things you have to consider or make/do; consider and do things more reluctantly. Having a quiet mind also allows one to see more details in the world, in a less filtered way.
Will more stuff, more money, more hours at work, more friends, more activities, more pleasure… really solve the big problems of life (i.e., suffering due to loss, aging, and death)?
So many people and things loved (in the sense of attachment) and lost in one way or another… every one of them is a wound that never heals.
People don’t really want the world to change; the world changes on its own incessantly, which is the cause of most/all suffering in the world (i.e., whatever one builds or gets attached-to in this world is inevitably destroyed). People want to change *how* the natural, psychological, and social worlds work. For example, the human body and mind are frail, susceptible to disease, and short-lived, so people want to find ways of overcoming those problems. Walking, running, or using carts are too slow/weak and painful, so people invent transportation technologies. Crop yields are too low, so people do genetic and other agricultural engineering. Certain social structures/regimes that are currently in power are destroying the natural environment, causing wars, or allowing prejudiced or unequal treatment of people, so people want to change those regimes. And so forth. Humans rarely want to live in their natural state.
Once said to a jealous ex of my girlfriend at that time: “Brother, she could leave me just as easily as she left you.” And we did mutually separate eventually.