Here are potential words to fill in the blanks:

1. **as**
2. **Those**
3. **providing**
4. **experience**
5. **interaction**
6. **corners**
7. **makes**
8. **guarantee**
9. **may**
10. **journey**

So the completed text would read:

"The knowledge and eloquence that people gain through travelling is usually perceived **as** the best fulfillment in life. It is the inquisitive human nature that impels people to seek thrilling experiences and to set out on an exploration trip. **Those** who travel frequently and to diverse places benefit from establishing new relationships and **providing** a better knowledge about other cultures and lifestyles. However, there is a grain of truth in the assumption that people are prone to cherishing clichés and unfounded prejudices about other nations and their characteristics. Sometimes, it is only the first-hand encounter **experience** can help change the approach towards the so-called 'inferior communities'. This direct **interaction** with a different civilization enables travelers to drop their baseless assumptions and get acquainted with the real concept of life in all four **corners** of the globe. Beyond question, travelling facilitates friendship and **makes** it easier for many individuals to acknowledge the true value of different traditions and customs. Yet, it does not always **guarantee** enjoyment. It **may** also involve coming close with the atrocities of real existence as well as becoming aware of the challenges and hardships that other people have to struggle with. Hence, a true voyage is the one with a good **journey** of experience to reminisce about, very often combined with exposure to abhorrent sights and incredible ordeals. The learning to be complete, thus, requires an ability to observe and analyze the surroundings, both their glamour and brutality."