Nibbana and sukha

[Puerh]

@trusolo

So technically, the only state that can truly and rightfully be described as sukha is nibbana - complete absence of dukkha. All other states are “sukha-like” or “tainted sukha”. The word sukha was already in use before the Buddha realized that what we use it for is not the “real deal”. Inventing a new word would just create one more opportunity for objectification, just as the word nibbana sometimes does.
It may also be worthwhile to consider why the First Noble Truth is the truth of dukkha and not the truth of sukha, striving progressively until you achieve the highest sukha. The goal is end of dukkha, whatever we may want to call it.

I think very similar. Dukkha is the point of explanation because we live in a ping-pong dukkha/sukha without end. Although sukha is very needed or no progress is possible. Like a fuel which is burnt constantly and we need it to arrive the destiny. We should fill the tank everyday even with the more minuscule things.

[UpasakaMalavaro]

SuttaCentral

72
72
“There are, mendicants, these two kinds of happiness.
“Dvemāni, bhikkhave, sukhāni.
What two?
Katamāni dve?
The happiness of pleasure and the happiness of equanimity.
Sātasukhañca upekkhāsukhañca.
These are the two kinds of happiness.
Imāni kho, bhikkhave, dve sukhāni.
The better of these two kinds of happiness is the happiness of equanimity.”
Etadaggaṁ, bhikkhave, imesaṁ dvinnaṁ sukhānaṁ yadidaṁ upekkhāsukhan”ti.

Here the word for pleasure is Sāta and it seems that it refers to the happiness of fourth jhana vs happiness of the first three.

Both words have the same translation in a pali dictionary so what is the difference? And why does not the standart formula of the jhanas include that word as the thing that ceases in fourth jhana so that sukha can remain without contradiction?

In another sutta there is the word pāmojjattho that also means happiness and pleasure. So when there are many words for happiness than why is there not a different word for sensual happiness, happiness as a jhana factor and happiness that is beyond the jhana factor happiness.

Also I am not sure if I am wrong or if there is a mistake in the sutta: SuttaCentral
it says when someone in the fourth jhana perceives equanimity it is an affliction but equanimity is the factor of the fourth jhana. In the paragraphs before it is always the factor of the jhana that came before.