The main reason why people travel is, perhaps for pleasure. For instance, having worked hard throughout the weekdays, people will find a weekend trip to the nearby mountains or beaches a real relaxation. For another example, spending an annual holiday travelling abroad is an especially satisfying experience for those who do not have much of an opportunity to be away from their homelands. When people return from their travel, they will generally feel fresh and energetic, ready to work harder.
Travelling is also one of the best means for learning. You may have read or heard about something but you can never get an accurate picture of it until you see it for yourself. Seeing is believing. Furthermore, if you are careful observer, you can learn much during your travel about the geography, biology and history of the places you visit. No matter how well educated you are, there is always a lot for you to learn through travelling. The knowledge acquired from travel, as you will have found later in your life, is no less valuable than that from any influential reference book.