Asp.Net Page Life Cycle

Question

The second step in Asp.Net page Life Cycle is Init. In this Step I Read a line " The "Init" event is fired first for the bottom-most control in the hierarchy, and then fired up the hierarchy until it is fired for the page itself."

I don't Know What is mean of "bottom-most control in the hierarchy"  can anyone Explain the Meaning of This.

 

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