THE SCARIEST REALITY

What will be your answer if I ask you what is the worst thing you can imagine that can happen to you ? Maybe, an earthquake of 8 magnitude the next second, a terrorist shooting you , losing one of your five senses or the most obvious answer right now; getting infected with COVID-19.

But there is worse, it is FALLING INTO A BLACK HOLE. The fact that we are safe from it does not deny its existence and the question that what will happen if we ever fall into a black hole still arises. After all, it has never been knowledge but curiosity and observance which has given rise to all of the world's greatest inventions and discoveries.So now back to our question, let me try to give you the answer from all the research I did today through Google and YouTube

So,to start from the scratch : 

WHAT ARE BLACK HOLES ?
A black hole is a region in space where the gravity is so strong and pulls so much that even light cannot escape through it. The gravity is so strong there because the matter has been squeezed into a tiny space. The most well-understood black holes are created when a massive star reaches the end of its life and implodes, collapsing in on itself.

HOW BIG ARE BLACK HOLES ? 
The smallest black holes are as small as an atom but could have the mass of a large mountain. Another kind of a black hole is a stellar black hole. A stellar black hole is formed when the center of a very big star falls in on itself, or collapses(which causes a supernova). The largest black holes of all are called as the supermassive black holes which can have upto 20 times the mass of Sun.


WHAT IF WE FALL INTO A BLACK HOLE ? 
As you are sucked into a black hole, time will bend in front of you, allowing you to see the past and present. You'd just feel weightless, like an astronaut zooming around the International Space Station.But as you get closer to the center, the gravitational pull of the black hole would start doing strange things to your body.If you were to dive head-first into the black hole, gravity would start tugging on your head and stretch it out.
At first it would feel like a nice,deep stretch or a little bit of "cosmic yoga", as Neil deGrasse Tyson put it. But eventually your whole body would get stretched out and your sides would get squished in. You had be spaghettified, ripped apart and turned into a stream of atoms funneling into a black hole.

I reckon there is perhaps still a lot more to be known about black holes but on the basis of what we have discovered till now...they are definitely the scariest reality !!!