There is no benefit and there is no intrinsic positive nature in a pleasant sensation I am a beginner and I stumbled upon the sentence in a video given by a monk.

There is no benefit and there is no intrinsic positive nature in a
pleasant sensation

I will give you the context

We have to remove this idea that there is something beneficial about
the happiness. This is probably mind  blowing for most people if
they've never studied things like Buddhism. But really what objective
and what answer can you give if I ask objectively or intrinsically
&quot;What benefit do you gain from pleasure ? From physical pleasure ?
What is positive about it ?&quot; And you know you can simply you can give
a tautology and say &quot;it's good because it's pleasant&quot; or &quot;pleasant
sensations are good because they're pleasant&quot; which are both
meaningless of course.
And this isn't simply a tricky sort of argument, it's not an
intellectual trick of sorts. 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.

As the monk said, it is a bit mind blowing for me. If I take an example, when I am hungry, I am in pain, which is the nature way to tell me &quot;Time to have a meal&quot; and when I am full, the nature is telling me I have eaten enough and I do not need to eat more.
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.
So my question is: what does the monk really mean ?
It's really simple. (Long-term) benefit and (immediate) pleasure don't always go hand in hand, and more often than not they are in the opposition to each other.
Life can be lived with pleasure as one's guide, always choosing what's pleasant now regardless of its long term harm or benefit.
Or life can be lived with long term wellness, health, and happiness as one's guide - regardless of whether it is immediately pleasant or unpleasant.
Guess which method actually leads to more pleasure down the road?
This is the basic idea, that pleasure is a bad advisor. Children and naive people pursue pleasure over benefit. Wise people pursue benefit over pleasure.
Now, not all pleasure is misleading. There's a category of pleasure that accords with Dharma. A pleasure of peace, a pleasure of simplicity, a pleasure of laying down a burden of attachment, a pleasure of understanding the Teaching, a pleasure of recognizing one's attainments.
But if you are looking for a simple rule of thumb as a beginner, then the easiest way to practice is by separating all your thoughts, impulses, and motives in two classes: ones that lead towards peace, harmony, enlightenment, Nirvana - and ones that lead away. Pursuing long-term benefit you'll attain both benefit and pleasure. Pursuing just pleasure you'll attain none.

That's the main idea, and the second, more subtle idea, is that the pleasure in and of itself is an illusion. Sweets that seem tasty to young children are awfully primitive  to most adults - but try to explain that to a kid. Experiences seem pleasant when the observer is naive enough to evaluate them in a superficial way.
It is with other experiences like it is with the tastes - they are only pleasant in contrast with each other and only in certain combinations and only when you're hungry. Sexual act is only pleasant when you are &quot;hungry&quot; but quickly becomes a burden when you are satisfied and your partner begs for more. Not to mention the sexual disgust of having to share a bed with a person you don't find attractive.
If you carefully examine a pleasant sensation such as taste, smell, touch,  or even a more subtle pleasure of looking at a beautiful picture - you will notice your brain hard at work making the experience pleasant, comparing and contrasting it with other experiences and memories of experiences - all to convince itself that this sensation is in fact pleasant.
To a lucid observer pleasure is insubstantial like a lens flare and so is pain. However bright it's just a reflection.