A point in calligraphy should be written like a crumbling rock on a mountain peak, but it is still strongly combined with the mountain. Points in calligraphy are separated from characters in form, but they are inseparable from characters. Like a cloud on a mountain. I wonder if you have the experience of overlooking from the clouds? The endless clouds at the foot seem irregular, but they float at a certain height of the mountain. In calligraphy, words should be used to achieve this effect. These two sentences compare the mountain to a figure, pointing to a rock on the mountain and pointing to a cloud around the mountain.
The second is the combination of the weight and rhythm of calligraphy ink. Writing depends on mastering the rhythm and weight, making the words look relaxed and more charming.
Third, for those who have made achievements in copying and want to have their own brushwork and style, it is to ensure that your handwriting is a whole, no matter how you write it, you can create it at will with your imagination.
I hope my explanation can give you some inspiration, and I hope people with different opinions can give you better answers.