If you dream about the envelope, then you will get some very serious matter news that will come completely unexpected. The envelope or envelopes could also be a symbol of the fresh and new start, where you will understand something or even make new plans. There is also an explanation about dreams with envelopes which foretells about the chances you havent used, therefore you feel sorry about it.
Dream dictionary: i m sorry for dream meanings
…If you dream that a tree or shrub grows fast, it is a sign that you will do something in a hurry that you will afterward be sorry for: if it be your son, or daughter, or any near young relative that you imagine to grow very rapidly, it foretells an accident to them. Lucky lottery dream numbers – 1, 19….