There were all kinds of martial arts in Jin Yong. Which martial art was the most difficult to cultivate?

There were many types of martial arts in Jin Yong's novels, and each martial art had its own unique characteristics and difficulty. Generally speaking, the difficulty of practicing martial arts was closely related to the nature of the martial arts, the difficulty of the practice, the aptitude and experience of the practitioner, and other factors. In Jin Yong's novels, the following martial arts were considered the most difficult to cultivate: Sunflower Manual: This is a mysterious martial arts manual. It is said that to practice this skill, you need to give up all bad habits and overcome your inner fears and desires in order to reach the peak of martial arts. Due to its unique cultivation difficulty, it can only be selected to cultivate under specific conditions, and the success rate of cultivators is extremely low. 2. Purple Glow Divine Art: This is a martial arts secret manual for practicing internal energy. It is said to be able to increase the strength of the practitioner, but at the same time, it also has extremely high risks and difficulties. Cultivating this technique required a lot of time and energy, and at the same time, one had to resist the risks and attacks of the outside world. 3. Ice Spirit Silver Needle: This is a unique martial arts secret book. To practice this skill, you need to master a special internal force and a special acupuncture method to reach the peak of martial arts. Due to its unique cultivation difficulty, only a very small number of people could successfully cultivate it. Huashan Sword Seminary: This is the most representative and authoritative event in the martial arts world. Every year, the Huashan Sword Seminary will select the strongest martial arts masters. However, to participate in the Huashan Sword Tournament, one had to go through a strict test and selection. At the same time, one had to have a certain amount of strength and experience. Therefore, cultivating the martial arts of the Huashan Sword Tournament also required extremely high difficulty and conditions. It was important to note that the difficulty of martial arts was closely related to the nature of martial arts, the difficulty of cultivation, and the practitioner's own qualifications and experience. Therefore, different people might have different evaluations and views on different martial arts.