One of the major arguments that the Jewish people had about hearing Jesus for the first time is that he came to do away with the old customs and laws that Jewish people held so dearly. There could be nothing further from the truth. As he stated and was recorded in the book of John, Jesus came that they may have life and have it more abundantly. He did not take away anything but if anything, added to the faith of the believers. So when someone mentions that they have a Preterist view of eschatology, they are not meaning to shut other beliefs out, but possibly to add to them.
A worldview of something is how you look at the world. No matter what belief you hold or even political associations you have, it is all because you value the world through a certain way of thinking. If a person believes the sanctity of life begins the moment conception happens, that is because they believe that to be true and they will base their thoughts, beliefs, and activism in the form of taking to the streets or voting accordingly because of it. A world view is not bad, it simply is. You can’t change the color of glass you look through you can simply try to look at something else.
You have to know what you believe in order to share your faith. If you are a believer in Jesus then certainly you have heard about the great commission in which everyone on earth is to hear about the saving grace of Jesus and that is our job as believers to relay the message. You don’t simply know the books of the Bible and a few stories, but hopefully you dive deep enough to make the stories relevant and meaningful and guide your everyday life.
Once you have embarked on knowing intimately the Bible and exactly what it means to your life, then you may get into difficult theologies such as a preterist view of eschatology. Eschatology is the study of the end times and the preterist believes that the ends times have already been fulfilled. To be more exact, the preterist also is known by the names of Realized Eschatology, Fulfilled Eschatology, and The A.D. 70 Theory.