The point is the origin of all lines. It is the end of a statement. It is the end of the word. Where is it not used, where is it not placed? Open it and you will see the point in a literary article. The most obvious is at the end of the sentence. It's in the abbreviations, the dot. Quotations are in date indications. In the literature reports. It is in mathematics in arithmetic. It is especially in spatial geometry. It is in the form of points in some places, points on top of each other, sometimes in order, two and three points in a row.
The point is the beginning and end of an extension, the end of something. If no point is placed, it means continuing. It goes forever. They are intermediate stops of a time or distance from infinity to infinity. When you put the point, it is the ability to say from such and such station to this and that distance, or from that distance to that distance.
When put at the end of the sentence, the dot ending is completion. No more, word is over. Life is also the end point. It is where an ongoing life ends. Point in definitions, point in postulates and propositions. Almost everywhere, many things are the point. The proposition cannot be obtained without putting a dot. Your proposition makes no sense.
If you say line or point, it means point, as Mansur said. Point means the essence of the lines is its essence, its beginning and its end. It is an announcement that something is finished and absolutely completed.