Choice of Fate

We all have our dreams in life: the fairy tale that we want to live. It holds us together. It provides us with a direction in this chaotic world. It drives us through life! For most of us, there is already some person present in this world living our fairytale just because of random events happening because of cosmic luck. We would have been living in a utopia only if we were given the chance to choose our time and place of birth.
So up in heavens, where all human beings are fashioned, a person is given the opportunity to choose the life he/she wants to live. All the angels are excited to see what he/she chooses, but that person stands there expressionless. There is a problem. In fact, several! How does he/she make a choice for him/herself?