How is it possible to survive a fall from the 4th floor?

While spending time with my family and two best friends just this Thanksgiving, stepping out briefly to buy an allergy medicine and coming back, I caught my family on a conversation was about an 10 month-old baby who once fell right on mud from the 4th floor. The baby only had minor scrapes, small bruise, a fractured left arm and obviously was crying from pain.

I was curious about said baby, asked about it. Then things got a bit awkward and silent for a couple seconds. My mother broke the silence and said I was the baby. I've survived the fall and my parents were overprotective until I was older.

It was shocking to hear death could've gotten me right there. How is it possible to survive that fall?

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I never knew this. They were talking about being thankful that I survived the fall and that I'm now healthy and strong. I'm just wondering how it was possible to survive that. At that young ago, I would've die or suffer brain damage.
How is it possible to survive a fall from the 4th floor?
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