A dream with a balloon can imply your need to release feelings within.
To hold the strings of a balloon suggests your inability to let go of something, whereas a deflated balloon can imply that you will be disappointed in some way.
To blow up a balloon in a dream is a symbol of hope or ambition.
An ascending balloon is symbol of disappointment or unfortunate circumstances. To see a descending balloon implies that you need to be more practical in some part of your life.