See it. Do it.
If you have seen Sherlock Holmes (the movies), you've seen the scenes where Holmes foresees how he will defeat his enemies.
The ability to visualize and execute is essential. This is one of the strengths of the elite athletes. There is no better place where this can be witnessed than the Olympics. There are countless times during each and everyday where I use the capability to imagine the situation that I will expect to occur. It could be visualizing a tennis shot I'm about to hit or getting prepared to hit a monster kill in volleyball (which I am just getting acceptable at). But I also envision the most simple things like my daily morning routine or driving to a particular destination. It is critical to know your weaknesses and strengths so you can accurately reflect it in your vision.
The ability to apprehend what you're going to go through before it even happens is what makes someone competent at something. While being experienced and knowing what to expect can be useful, it worthless if you can't adapt to unanticipated condition. As I've said many times before, adapting is crucial.
But there is a rush of emotions and sometimes anxiety that comes with the unknown. That feeling is why it's exhilarating to experience new things especially when you don't have any expectations. The lack of control of the situation can always add to the exhilaration. Part of it comes from conjuring up various scenarios. The most intriguing events often comes with overthinking and summoning up ridiculous situations. One example that you probably can relate to is the next encounter someone that could be your perfect companion. You'll plan to say something extremely witty or maybe you'll try to seem all cool and important (the worst). Maybe it's just as simple as getting their number so you can continue communications. For unknown scenarios, it's always best to be conservative with your expectations (2014 Objective).