I have defined it. "I don't know".
  I can give you history:
  Raised Methodist (be nice, don't do evil, people of good
  conscience will have a pleasant time. No devil, hell or any of
  that growing up).
  But my grandmother was into Edgar Cayce (an American Mystic) and
  believed a little in ancient aliens, watched Star Trek and
  Doctor Who (and got me into them as well).
  My mother fed us yogurt.
  I didn't follow my grandmother in her Theosophy stuff, and she
  was barely into it anyway, just a little.
  Teenager: Got a job as custodian for my methodist church. I was
  there 7 days a week cleaning up the garbage.
  One day, age of 14, I looked around and said, "This place needs
  more candles".
  Flash forward, experimented with Bahai, Unitarian Universalist,
  Quaker, and then, JUST before almost going Roman Catholic
  (because I had a computer job at a Catholic University and
  enjoyed arguing with the priests-in-training about
  meaning-of-life questions), I opened up the Yellow pages on my
  lunch break and found something called "Eastern Orthodox".
  Never heard of it before then. I was about 24.

  Anyway, ended up getting into it. Stayed in a monastery for a
  very short time and even made it my retirement plan.

  Then, by 30, was bored with it, started a business, and got into
  Science and theoretical physics study hard-core in my spare
  time, after a brief stint with Osho who was fun 'cause he was
  basically, "Don't be an asshole, have fun with your life", which
  reminded me of the stuff I grew up with as a Methodist.

  Now I'm 43 years old. I'm agnostic.

  Does that help?