How do you mine blocks in Minecraft?

I've seen cool creators do the mining in minecraft blocks. How is that?

Left click on the mouse.

Was not that left click?

With tools. Everything goes with everything, but the right tool is better. Which for what is, should be logical.
First you build some wood with your hand, from this you can make wooden tools and mine stone, from this you make stone tools, etc., until you are at the end with diamond.

Yes 😂