Polestar and Radial point

Polestar noun - A guiding or motivating purpose or principle.

Radial point and polestar are semantically related in center topic. In some cases you can use "Radial point" instead a noun "Polestar", when it comes to topics like middle point.

Polestar and radial point are semantically related in center topic. You can use "Polestar" instead a noun phrase "Radial point", if it concerns topics such as middle point.