Journeys serve different purposes for different people and different times. Some people are very fond of visiting newer places and get the first hand experience of the place. Although these days you can read about place and see pictures on the internet but personally experiencing the place is simply different. Many journeys are performed with specific purposes like visiting the distance relatives, attending some meetings, marriages and to be with acquaintances in the hours of distress. In India, journeys are seldom undertaken for the pleasure because of the shoestring budgets in hand. Work was the main purpose of the journey.
Curiosity is behind this propensity of journeying. Whatever we read and see through books and multimedia increases our curiosity to visit and see with our own eyes. Now one can very well imagine the curiosity of the primitive man because before him lay the whole unknown and unexplored worlds. He was always on the move as a hunter in search of kill. He seldom returned to the earlier destination which was but a temporary residence. This went on till he got tired of moving and the womenfolk who in addition to teaming with their mates for hunting also bore and raised the offspring, discovered that some grasses yielded the seeds which were edible and easy to grow. So whenever they stayed behind, they began planting the grasses. This decreased the dependence on the hunting and arrested their wanderings to a greater extent. Then they began keeping the cattle which added to the profit of the household.
This way our ancestors laid the foundation of stable residences. It also provided them with free time. The lactation period of the women decreased. The result was population explosion. Although mortality must had been very high but still the increase in population was very high as there was still no competition for food which must have been in plenty. Again the resources in the vicinity begun to feel the pressure and competition for food sent from time to time some groups of people to other places in search of food. There they adapted themselves to different climates and food items. Thus the variations in the structure and features began separating. The changes have been so drastic that many people shall not be ready to agree that once upon a time in the remote past all their predecessors were similar.