Investigate the dreamYou decide to spend your time this week trying to find stories and explanations about your dream through bookstores and libraries.
Dreams as prophetic visions appear repeatedly in stories, sometimes sent by benificent spirits, sometimes as acts of malice by evil or mischevious ones. Some works on augury mention dream visions and dream spells to be used by people for various reasons, but the references are limited. This makes some sense, as you know that magicians and augurs of various kinds tend to be jealous of their secrets, and hence reluctant to commit them to paper.
Nevertheless, you feel convinced that this is a thing that could happen, even if it doesn't happen often, and although incomplete, you feel there is a reason for what you have been shown, and more may come in the future.
You might also try to have a priest or a spirit reader assist you if you want more information.
Question for the gm: when it says in this case that the plan 'expires' in two weeks, does that just mean it will go like planned in that duration, or can complications still crop up? Eg. if we want to try and use our porcelain plan next week, is it possible that by then the opportunity isn't there anymore because others capitalized on it this week, even though the plan itself hasn't expired? [/b]
In this case, the time limit is because the festival is in three weeks, so the opportunity will no longer be there. You could still trade normally, but you wouldn't have the benefit of the recent event.
If something ends badly, you may or may not end up being able to try it again, depending on how badly it fails and what the plan is. For something like trade opportunities, you could probably try it more than once.