Finding Bliss One Must Be Brave

Seemingly dark and scary,
So big and deep and round.
It takes a brave stout heart,
To venture inward bound.

A wary step first tests it,
To sense what is its feel,
No attack does lead to bravery;
Further onward, what will be revealed?!

Oh fun and romp and rapture,
Tons of fun does come from this;
A kitten in a toppled garbage can,
The resulting joy soon leads to bliss!