We are an creative and imaginative beings by nature. We fantasize about things which we cannot act upon in reality. Let's split the question.
1. What''s the difference between fantasy and reality in
your opinion, do not tell me you have never fantasized about anything?
2. Does your imagination/or your fantasy influence your decisions in reality?
3. What do you think, is holding on to your fantasy would make you successful or embracing the reality and surrendering to it is the way of success?
I would have used dream instead of fantasy, but dreaming is a subconscious process which we do not have much control upon, but fantasizing is a conscious process where we purposefully/deliberately think that this thing could have been like this rather than that.
Another thing, fantasy here is not in the NSFW sense, it is more like reality vs your thought process or what you think should be real.
These quotes would be more helpful.
We need fantasy to survive because reality is too difficult
Pleasure may come from illusion, but happiness can come only of reality.
In my own opinion, fantasy is somewhat related to dream, but you are conscious enough to realize that you are in a fantasy. It is related to making your own illusion or tricking your mind. On the other hand, Reality is the acceptance of all things to basic, where we struggle to survive and we are not the hero as we have imagine or dreamed.
Fantasy does not actually matters in reality, but it help you to ease ant problems and when making any decision we need to calm down and does result to good decision. But fantasy does not have any direct effect on how we make our decisions.
It is not a sin to fantasize, really it helps to calm down, but thinking more realistic is the best way to survive in reality for which it helps a person do achievable things. It does not rely on anything but pure reality as a base, that can result to achieving a goal without expectations from yourself.