There's only one true Tree of Life in the world. A tree whose roots reached deep into the planet, almost touching its core. A tree that stablizied the planet's orbit, keeping it from falling into the sun. A tree that imbued the planet with life, allowing plants and Pokemon to flourish all across the world.

In some ways, the Tree of Life is the planet. It keeps the planet alive.

And during times of great crisis, when the very planet itself is in jeapordy...

The Tree of Life begins to wither, the planet bleeds, and mystery dungeons begin to multiply.