QUESTION: Wanted to ask u something, I googled about, But could
  not reach to the meaning, What is " seven years comfort zone" ?
  MY ANSWER: Good question.* I will guess. A "comfort zone" it is
  a place where you feel safe.* It can be a safe room.* It can
  also be a safe life situation.* In this case, someone might have
  been doing the same kinds of things for seven years and they
  were ok with doing the same kinds of things for seven years.
  Leaving the comfort zone means doing something different.* Doing
  something unfamiliar.* This can be scary. That is what I think
  it might mean.