The life of common people is very predictable. The rhythm of this one does not allow much flexibility, the system that we are immersed demand high speed to everyone daily. That means that one could predict what a person will be in the future, not exactly but near from that. Much people feel this, and get depressed. So a good solution to resolve this situation is to get a complete free year, a sabbatical year.
In a sabbatical year one could do a lot of things, you could work, could travel, and could do nothing. The important is that if you are going to take a sabbatical year, it depends of what you are usually doing. In this way, one should say that is going to take a sabbatical year to study, people whit a higher rhythm of life may do that. To take a sabbatical year is no problem if you really need it or you can have it (pay it), I really do not feel with the authority to say if a sabbatical year is correct or no, but as I recently say, one could think in normal reasons to take one.
If you are going to take one, I think that you should travel. There are many places all around the world that one should know. Many cultures, ways of life, things that happen in other places. A sabbatical year should be time to think on life, in all aspects, like: What happen with the family, studies, friends, ways of life, and things to do in the rest of our life. At least, one should spend time on people that you consider important. Many times one say that there’s no time to see friends, so that should be the time!