There is no benefit and there is no intrinsic positive nature in a pleasant sensation
Pleasant feelings do have a benefit, in that they allow the mind to be at ease in concentration (MN 36 paragraph 39). Pleasant feelings from meditation also allow the mind to overcome the temptation of sensual pleasures (MN 14 paragraph 3) .
As for "no intrinsic positive nature", this can only be understood by those minds that have reached higher levels of meditation, where knowing/touching the Nirvana element surpasses the benefit of pleasant feelings (AN 9.36).
In short, Buddhism teaches there are two types of pleasant feelings:
(i) arising from sensuality; and
(ii) arising from Dhamma practise.
Refer to the Sukha Vagga in the Anguttara Nikaya.
The second type of pleasant feelings have benefit. The Buddha taught they are to be developed and not feared (MN 36 paragraph 39).
We have to remove this idea that there is something beneficial about
"Happiness" is a word often used in a positive way in Buddhism. For example, the scriptures say: "Nirvana is the highest happiness" (Dhammapada 203 & 204).
As said above, it is important to distinguish between the different types of pleasant feelings and also distinguish between pleasant feelings and happiness.
While ultimately, the highest happiness is Nirvana or Non-Attachment, dhammic pleasant feelings have a strong role in the Buddhist way of life, such as the pleasant feelings & equanimous feelings of jhana.
This is probably mind blowing for most people if they've never studied things like Buddhism.
There is nothing "mind blowing" about the verbal drivel & babbling of monks that don't understand Buddhism.
But really what objective and what answer can you give if I ask objectively or intrinsically "What benefit do you gain from pleasure ? From physical pleasure ? What is positive about it ?
The Buddha taught "The Middle-Way" in his 1st sermon, which is a path of non-sensual pleasure and the avoidance of self-created pain (called 'self-mortification'). The quote above is not related to Buddhism but is sheer nonsense.
And you know you can simply you can give a tautology and say "it's good because it's pleasant" or "pleasant sensations are good because they're pleasant" which are both meaningless of course.
The above quote sounds like just Western philosophy. "Pleasantness" is "Dhamma" because pleasantness makes life bearable & liveable.
I already mentioned the Buddha taught there are two types of pleasantness and the 2nd type of pleasantness is to be developed and not feared or shunned.
And this isn't simply a tricky sort of argument, it's not an intellectual trick of sorts.
Sorry but the above is an intellectual trick, i.e., a trick of ignorance.
It's actually true that there is no benefit and there is no intrinsic positive nature in a pleasant sensation. (...) The issue is this clinging, this craving for pleasant sensations and the idea that pleasure is somehow positive.
Since the true pleasant feelings of Buddhism arise from non-clinging, the above quote is illogical and heretical nonsense.
In conclusion, the quote in the question is unrelated to Buddhist principles and is probably best posted on Philosophy Stack Exchange.
If I take an example, when I am hungry, I am in pain, which is the
nature way to tell me "Time to have a meal" and when I am full, the
nature is telling me I have eaten enough and I do not need to eat
The Buddha taught to eat food as follows:
In this a monk takes his food properly considering, not for sport, for
intoxication, for adornment or beautification, but purely for the
maintenance and nourishment of this body, for keeping it unharmed, as
an aid to the practice of the holy life, thinking: 'I shall put an end
to the old [unpleassant] feeling and not produce any new [unpleasant] feeling [from over-eating or excitement due to lust]. Thus I shall keep going, incur no fault and live at ease.' (SN 35.120)
And when I am listening to pleasant music or when I am with people I like/I love, I feel my mind at ease and I am happy.
For common ordinary unenlightened people (called 'puthujjana'), some types of music are not greatly harmful. However, from the viewpoint of enlightenment, music is sensual pleasure and an obstacle to the higher path.
As for associating with wise people (such as myself), yes, Buddhism recommends this. The Buddha said this will be for your welfare & happiness.