@Fil Albuquerque,
good morning,
it is based on the view, that life, in it's most simplest forms (a breath of clean fresh air), is jammed with pleasure, but defective attitude and beliefs, obstruct one, from tapping into his inner experience.
distracting your focused awareness (through jealousy,etc) of the joy you already possess,
is on top of the list of culprits.
but, so is, the engagement in harming beings,
the last line, refers to a psychological cycle, which activates, when engaging in causing your fellow man pain, loss, etc.
to illustrate, if someone asks you whether life is great or it sucks' right after you were badly shamed in the workplace for example, an honest response (at least inside) , would likely be, life stinks way to often, it's pretty shitty down here.
now when asked the same, after your boss publicly announced your promotion and your value to the company,
a very honest inner reaction will likely be, give me some more of that great stuff (life), i wanna continue for infinity.
above is a demonstration, of how a focused awareness on a specific area in creation, will drastically alter your experience in the very same safe or dangerous environment.
now, this idea suggests, that a similar effect takes place, when one acts kindly or with cruelty to others,
even if you don't experience the pain you cause others (this view, disputes that), when you are so actively involved in generating destruction,
the awareness, about the abundance of possible harmful scenarios, that threaten you 24/7, is alerted to a very high level, which demolishes your own inner peace,
to an extent, where you don't feel your inner joy unless it's some extreme stimulant (drugs) that partially triggers your spirit.
to abbreviate,
i get up in the morning, with a specific intent, to tap into my abilities to appreciate life,
(by releasing my inner peace from it's prison of crushing suffocating patterns and habits,
allowing the peace, to radiate its safety into an area, where once i step into there,
i am shielded enough from distractions, diversions etc,
that i can "notice" the incredible pleasure of existing (even without the innocence of an infant),
rather than finding new, more intense, triggers.
therefore,
when i cause another heart to brighten, lips to stretch,
as much as i have "given" them, i have gotten way more.
no one owes me anything, as i have already been rewarded.