It would seem that all a person needs to succeed is a vision — of what, where, and when. Images can easily blend into one, but it is most difficult to do something if there is no idea of what is wanted.
Therefore, having an image of the place and time — and situation — would probably be a helpful and beneficial factor.
But, what is there to stop us then ? What of the inherent limitations in our minds ? What are we actually capable of imagining ?
All questions of possibilities are difficult to answer, but I would dare say that everything will happen — sooner or later.
And when we imagine — is it a dream of grandeur, or happiness ? Or, are the two even mutually exclusive ?
What if the situation a person manages to conceive in their mind is mistakenly considered the one where he (or she) wishes to be ?
I guess it all comes down to acceptance.