Early waking boys, after adults late night

When I came downstairs on Saturday morning, Susie was taking my grandsons on a yard adventure. The swing of the water sprinkler was a waterfall to negotiate, the stones around the flowerbed a rocky trail to traverse. There were trolls to avoid (a large sprawled out cat) and zombies to run around (an uncle out doing business).  Susie took the boys for an adventure and told their mother to "rest" for a bit. Since most of the adults in the household went to bed around 4:30 am after chatting together all night, this was a needed respite.

Passing the zombie

Avoiding trolls

Traversing a rocky path

Little extra help for the toddler

Then she had them counting down houses and finding treasures of a certain color. They would bring all their treasure for me to admire and then go out again to find another color of treasure. I had platefuls of leaves, pop tops, some kind of handle, feathers, fruit, flowers, nuts and seed pods, along with trash and debris from yards.

When Susie had to do some work for her office, she had the boys draw a treasure map of where they had gone

Then she rolled it into a workable scroll

And took the boys on a treasure hunt when she was finished with her work.

Susie needed to answer some email, texts and calls from her office and work mates, so she had the boys draw up a treasure map of where they had gone that morning and the houses they had stopped at.  I have to admit it looked like squiggles and boxes to me. Though I did recognize the colors they had brought home.  Susie handed me some lollipops and said to hide them in the yard with a red cup on top so they could "find" them when they got home.
Where does her imagination come from? How can she turn everyday items into magic for kids young and old? How did she learn to be so fun to be around? Why?