You are simply seeing light touching your eyes I was listening to a buddhist monk talking about masturbation addiction and his advice about it:

When you see the human body or these sexual acts on a screen or
magazine page you are not actually seeing these things. You are
simply seeing light touching your eyes. And when you can come to
this realization, where seeing is simply seeing, then you will have no
thought of the person's hair, teeth, beasts, etc. There is only
seeing. So you are able to see anything and see it simply for what it
is. Thus there is no connection made. Seeing is seeing, because that's
what it is. You don't see a human body and say that it is beautiful,
because you realize it's ridiculous to say that, because this is
simply light touching my eyes

I have difficulty to understand what the monk means by that, what is the difference between seeing a screen and the &quot;seeing light touching your eyes&quot;
Could you give me some pointers ?
In our minds, we have the idea of &quot;I am the thinker&quot; i.e. the idea of the self. That's the primary object in existence in our reality. We also have the idea of non-self objects i.e. everything else. We objectify and classify everything around us, into non-self objects, according to their relationship to the self. For e.g. my hand, my car, not my friend, not my country.
When you look at the waters of the sea from up close in a boat, you may feel fear and insecurity, especially if you don't know how to swim and have motion sickness. To the sailor, it's a source of joy and adventure. To the fisherman, it's a source of livelihood and he sees it like a mine or oil field. To fish deep in the sea that has never left the waters, the concept of water doesn't occur to it at all, as it does not know any other reality.
Another example - a piece of cooked meat appears like delicious food to the meat eater, and it appears repulsive to the vegan. To a honey bee, it appears like dirt because it's not its food.
These examples go to show that objects do not have the meaning given to it by the mind. In fact, some of these are not even objects, except that they have been objectified by the mind.
What's a body of water to me is nothing at all (or perhaps everything) to the fish. The waters of the great sea, as a place to sail and swim, and as a body of liquid, doesn't really exist, except in my mind. It certainly doesn't exist in that way to the fish.
What's delicious food to me, is dirt to the honey bee. So, the delicious food doesn't really exist, except in my mind. The dirt doesn't really exist, except in the honey bee's mind.
This concept is called papanca, which is objectification plus classification, also known as reification. And it's related to anatta (the teaching that all phenomena is not self), because papanca is when non-self things are reified into objects and they are classified relative to the self. The idea of the self is also papanca.
This does not mean that things don't exist, except in my mind. It means that things don't exist as how my mind thinks it does.
From your question, you talked about seeing, let's say, attractive people on a screen. To an ant, it's just lights of different colors. If a mouse sees them - it's just an image of what it may perceive as humans - a threat. But to you, they are attractive people.  So why are they &quot;attractive people&quot;? It's because that's how your mind objectified and classified them relative to yourself. That's how your mind reified them. That's papanca.
Fully enlightened persons like the Buddha and the arahants see things the way they are, without objectifying and classifying them relative to the idea of the self.