python what does lable do

hey guys can anyone explain this code

from tkinter import *

def create_window():
    new_window = Tk()
    old_window.destroy()
    Label(new_window,text='hi').pack()
old_window = Tk()

Button(old_window,text="create new window!",command=create_window,).pack()

old_window.mainloop()

why he write the lable intead of just writing text= in new_window and who actually lable work
I searched for this topic on YouTube, but I did not find an answer to my question. they just writes a label without any explanation as to why he wrote it.

>Solution :

Label is a widget that implements a display box where you can place text or images. The text displayed by this widget can be updated at any time you want.

So this line:

Label(new_window,text='hi').pack()

Does the following: create a text saying hi in the window called new_window, then displays it by using the .pack() method