Language is one of the most important parts of any culture. It is the way by which people communicate with one another
2. The three kings had a spiritual meaning: gold as a image of kingship on earth, frankincense (an incense) as a image of deity, and myrrh (an embalming oil) as a image of death. This dates lower back to Origen in Contra Celsum: "gold, as to a king; myrrh, as to person who became mortal; and incense, as to a God."
generlly speaking tu is used with people younger than or acquaintances/people that are close to you. While Ud. is used for the elderly and for people you show respect to