The last of the 6 primary strokes is a stroke that slants downward toward the right, the dot stroke, called 點 (diǎn) in Chinese.
To form this stroke, again 2 joints of the arm must shift position. From the previous position of the arm extending diagonally downward from the body, rotate the shoulder joint upward, such that the upper arm and the forearm extend to the left horizontally, parallel with the ground. Next, bend the elbow 90o, such that the forearm now extends vertically upward. The wrist retains its position from before, not in line with the forearm, such that the hand now extends diagonally downward and rightward. The fingers change, opening the fingers into a flat palm.
Whereas the first stroke represented by the left hand used all 3 parts of the arm, and the second stroke used only 2 parts of the arm, this third stroke uses only 1 part of the arm. The dot stroke is represented only by the hand.
In the drawing of this stroke, Rule 1 and Rule 2 both apply, since these strokes are drawn both horizontally and vertically. However, both rules are violated; the upper arm extends from right to left and the forearm extends bottom to top. Therefore, the dot stroke is represented by the left hand.
The character that means eternal (yǒng) contains the diǎn stroke; it is the first stroke, at the top in the middle.
