The Sun has a multi-layered structure, each causing different effects if we bring it to Earth.
You will not be able to survive if you bring part of the Sun to Earth.
If you bring a part of the Sun to Earth, let it be short: You will die! Longer: it depends on which part of the Sun you bring.
Like most things in the universe, our Sun is not solid, liquid, or gas, but plasma . Plasma forms when matter becomes so hot that the nucleus and the electron are separated and moved freely to create a material like slime.
So you can imagine the Sun as a huge and extremely hot slime. The deeper you enter, the more dense and more exotic the slime.