Translations:Manual:Navigating in the 3D view/5/en

The point where the three axes meet is the origin. It is the point where the value of all coordinates is zero. For any given axis, moving in one direction will increase the coordinate value and moving in the opposite direction will decrease the coordinate value. Every point of every object that exists in the 3D space can be located by its (x,y,z) coordinates. For example, a point with coordinates (2,3,1) will lie at +2 units on the X axis, +3 units on the Y axis, and +1 unit on the Z axis: