Greetings and peace be upon you.
This post is about the possible existence of Extraterrestrial beings,

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Extraterrestrials are beings that exist beyond the barriers of Earth. Who knows, maybe some of them can carry out photosynthesis, maybe they have different laws of nature, maybe for them WE are the Extraterrestrials.

Do you believe that extraterrestrials exist?

Islamic Point Of View.

In Surah-Ash-Shuraa, Allah says.

And among His Signs is the creation of the heavens and the earth, and of whatever living creatures He has spread forth in both. And He has the power to gather them together whenever he pleases.”
(Holy Quran, 42:30)

This verse indicates there are more than one beings since the verse says "living creatures" and gather "them"" together, and since all the discovered beings are already discovered on the planet Earth (Majority) this definitely hints at the existence of other life in the universe.

Do you know of anyone who claims to have seen them?

In history many people have claimed to be abducted by them or encountered them, like the 1973 Pascagoula incident.
But I personally do not know anyone have has claimed to have seen them.

What do you think of those who claim that they have always been here and have helped mankind? Give examples.

Again I personally do not know anyone who has claimed to see them. But even if there was a encounter between us, the first obstacle would be to somehow let them know that we do not pose a threat, 2nd would be communication. If they're the one reaching out to us and are successful means that they have far more advanced technology than us, so we would be able to learn from them.

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Will we ever know the truth about this subject?

Higher ups of certain countries get uncomfortable from this topic, what if they're hiding something from us? what if they visited us in the past?
In my opinion, we will get to the bottom of this topic soon.
This is my entry to the season 17 week 4 challenge about "Extraterrestrials".
I invite @roominaz @hamzayousafzai and @mesola to this challenge.