I am delighted to answer this question: it’s Mathematics and Geometry 😊, and this works perfectly for me wherever I go, so if you dislike maths, you probably have had bad experiences with it, breathe mindfully and start over 🙄! One of them is the foundation of our society, and the other is helping us to understand God’s calculations ( as in God’s geometry;), so you’d be better off in all worlds if you like maths