What inspires you? How do you get inspiration?
I reckon inspiration is as important as having motivation.
You need to have an idea in order to write or draw it.
Getting the idea though Is a bit harder than staying motivated.
You never know when you'll get a new idea.
Its good to brainstorm once in awhile but when it occurs spontaneously, there's something worth developing further.
Motivation is also important. You need to energy to work on an idea as well.
Motivation is needed for long bouts of writing or creative works.
Having a moment of inspiration can require a small amount of preparation.
Such as having a few notepads/books available for when inspiration strikes. As well as a pen or pencil.
Dream journals are also good, if you remember you dream when you wake up. Some notes from a dream can lead to several stories or ideas!