If you look at the Bible, we have God the Father in the Old Testament. We have God the Son in the New Testament. Jesus also promised the Holy Spirit or Spirit of Truth after he left. This is also a different aspect of God; multicore. The trinity is about these three different expressions of God and worship, with any one, two or three valid ways to serve.
The Old Testament is about law. The New Testament is about love; love God and Love your neighbor summarizes the law. While the future Testament of the Holy Spirit is about faith; Joan of Arch. Joan followed he faith to lead her cultures armies into battle. Then she accepted the double cross; She was sold as a witch who is burned to death.
The analogy in going into the city to shop. You take any one of the three main roads to the center, and still reach the same final spot. Some may prefer I95, while others like I90, and still others prefer to use Route 1. We all can still meet at noon for lunch. This flexibility was a strength for Christianity, since it allows for choices, that best suits your nature, so all can still meet in the same place.
The problem is some people, who are better at one way, often assume this is the best for all. The Trinity understands there are three basic types of relgious people, and provided a way for all to serve within their type. If you can accept the Trinity your brothers and sister in faith, multiply, since you do not judge by just one expression of God.