You're babbling again/still . . .

Not content with regurgitating the obvious, automatically - you must 'explain' it - as a 4 yo to a 2 yo who just asked Why..?
then, Why..?
then, Why..?

Here's your audience, then:

Romper Room II

Practice.
Practice.
You'll get it. Many kids Like hearing stuff they already know; that's why we read them the same fairy stories.