Why did the Vikings leave their native habitats and make long trips to foreign lands?

If we consider the way of life of free Jarls – Vikings, it becomes clear that the Vikings lived off the labor of slaves who were brought from foreign lands. The Vikings were born warriors, and the upbringing of children and the way of life were maximally aimed at raising fearless warriors. The Vikings had many tributaries. They received tribute from the population, whose lands they conquered. (For example, the Sami or Lapps, as the Normans called them, were subdued and regularly paid tribute to the Normans) The main types of production were: iron, furs, slaves, gold and women.