Only every so once in a while will this demon find me, only every so once in a while will it find me, and lock me into place... cemented stationary. It's just one of those things that creeps up on you when you least expect it, and won't go away until you guess the magic words. Writers block is the beast I speak of, every writer's worst enemy. It's a enemy that prevents you from letting out an evident flow of creativity that just won't articulate. If you ultimately wish to find a way to conquer this nemesis, view it as a challenge and your best work could come from it.
Sometimes writers block will be a repeat offender, which can become increasingly frustrating. When writers block is attacking you all over the place, sometimes you have to learn how to slow down whatever your speed is so you don't lose your train of thought, and you're able to follow an idea while thinking here and there to come up with new ideas. Other times you can stop writing for a while and come back to it later, it all depends on who you are and what works best for you.
When everything ultimately boils down though, and you've finished your piece of work, writers block seems insanely minuscule. Maybe writers block could have even ended up being helpful to you. Sometimes it can bring out really deep seeded creativity, and other times it can make you rework something until's it's perfect. Every obstacle you encounter in life or writing always makes you more capable and successful. When it's all said and done, experience is always the best teacher and writers block is quite the experience.