Answer:
I can travel from there to here by disappearing, and here to there by reappearing.
Though easy to spot, when allowed to plume, It is hard to see, when held in a room.
They belong to me; they belong to you; They can make you feel happy or make you feel blue; They never end until the day you do.
I have rivers without water. Forests without trees. Mountains without rocks. Towns without houses.
What does no man want, yet no man want to lose?
They are many and one, they wave and they drum, Used to cover a state, they go with you everywhere.