I never really thought about it. Sometimes real life events and sometimes I get inspired by other stories I've read or songs I've heard. Once in a while I sneak a pop culture reference, song lyrics, or saying into my writing.
Those are THE funniest trees I have ever seen!! I was just blown away, I mean just look at them!!!! I read that some Redwood trees are 2,000 years old. TWO THOUSAND!!! I was reading a book called Star Wars the Old Republic Fatal Alliance (have you read it? It's great) and on Corusant there is a place called the Centograph of the Innocents were a tree was planted for every victim of this battle. Is that humbling or what?
I love meditating and I do it all the time. I especially like to meditate by the ocean or swimming pools because I love the water. Sometimes I just float on my back and meditate or I dive to the bottom and meditate as long as I can. It makes me feel more connected to the force :)