The print() function is how Python talks to you. Whatever you put inside the parentheses appears on screen. It's the most basic way to see what your program is doing.
You can print text: print("Hello"). You can print numbers: print(42). Notice that numbers don't need quotes. Python knows is a number, but "Hello" needs quotes because it's text.
Print is your debugging friend. When code doesn't work, adding print() statements to show variable values helps you understand what's happening. You'll use this technique constantly.