Travel is 1)___________ and sometimes even unpleasant; then what is the driving force behind our travel? We travel because we need to. Sometimes our travel is a 2)____ because we should attend the business luncheon, because we should celebrate Thanksgiving with our mom. We travel because we want to. Owing to the fact that most travel is 3)_______, we just travel following our heart. Most people travel for the sake of 4)__________, but their mind tends to solve the stubborn 5)___________ issues while on vacation. What is the real purpose of travel? Travelling to a new place can make us less controlled by familiar cognitive 6)________ that imprison us. As a result, we can better combine the new with the old, the mundane is 7)________ from a slightly more abstract perspective. To 8)__________ travelers, multicultural contrast means that they are open to ambiguity and willing to see the world in different ways, thus to expand the 9)______________ of their “cognitive inputs” as they refuse to 10)__________ their first answers and initial guesses. Of course, that mental flexibility is a side effect of difference and we know what we did not know in the past, by which we become more open-minded and less 11)_______. Apart from its advantages, travel also has it 12)_________, which make us not take great pleasantness. More often than not, we need a 13)_________ after our vacation. We travel because we need to , because distance and difference are the 14)_____________ of creativity. Travel will change our mind to some extent, which in turn can have 15)________ on everything in our life.