Before Sasuke knew the truth about the genocide of Neiguang clan, it was his only life goal to improve his strength and get revenge on skunks, and finding orochimaru to improve his strength was the fastest way to achieve this goal.
The childhood experiences of the two leading men in Huo Ying are tragic. Sasuke, as the youngest son of Neiguang clan leader, should have grown up in a very good environment, but because of the contradiction between Neiguang clan and village and the various operations behind the group's hiding, the weasel had to carry out the order of genocide.
Sasuke's warm and harmonious childhood is gone forever. In order to avenge his dead parents, Sasuke Uchiha must work hard to improve his ability. Originally, according to Sasuke's talent, his development potential is not low. Even among the graduates in the same period, Sasuke's strength is one of the best. However, after orochimaru attacked Muye Village and ferrets returned to the village to find Naruto, Sasuke found that his previous advantages had disappeared, and he had to seek other breakthroughs to enhance his strength, among which taking refuge in orochimaru was a better choice at that time. Because orochimaru's mantra for Sasuke is obvious from the perspective of improving combat effectiveness.
After the genocide of Neiguang clan, Sasuke took hard life and practice as his goal, but in fact, the gap in talent between them was quite obvious. If there were no other external factors to stimulate Sasuke's growth, it would not be so fast.
What puzzles Sasuke is that Naruto of Class 7, under the guidance of Boguo and Jiraiya, used Kyubi no Youko's strength in the attack on Muye Village in orochimaru. After learning spiral pills, Sasuke who owns a thousand birds may also be tied up. This result is unacceptable to Sasuke. After all, as a proud Sasuke, watching Naruto's strength catch up with or even surpass himself makes Sasuke's sense of crisis more and more obvious. Kakashi didn't have the ability to quickly improve Sasuke's strength at that time, so Sasuke had to target orochimaru.
In addition, in the story about Uchiha Itachi's return to Mu Ye village, the confrontation between the two brothers is almost one-sided. Knowing that Sasuke of Thousand Birds was easily suppressed by ferrets, Kakashi was also sent to the hospital by ferrets with magic, which made Sasuke subjectively think that Kakashi was inferior to ferrets in ability, and the probability of studying with Kakashi in the future was not high, so Sasuke was more inclined to find other ways to improve his strength quickly.
Sasuke was given the mantra by orochimaru and decided to study with orochimaru. The user of the spell is bound by the spell while gaining great power. Sasuke had to find orochimaru to study.
Mantra is the product of orochimaru's mass production research after referring to Jyuugo's special abilities, aiming at mass production of tools that can instantly increase the fighting capacity of ninjas. After a lot of experiments, orochimaru found that through special methods, the spell holder can be controlled by orochimaru while having strong fighting power. In addition, if you don't learn how to use mantras, the power of blindly using mantras will accelerate its erosion to the body. So I personally think that since Sasuke was bitten by orochimaru during the exam, he was destined to learn from orochimaru:
On the one hand, Sasuke could only open mantras at that time. If he wants to exert the full power of the spell, he must learn the deep usage of the spell stem from orochimaru. On the other hand, the influence of catchphrases on users is not always good. With the increase of usage, the spell will erode the user's body faster and faster. If Sasuke doesn't learn the usage of mantras from orochimaru, the result of waiting for Sasuke will be complete loss of self, even death.
Orochimaru knew that Sasuke was a man who pursued ultimate power for the purpose of revenge in his early days, so he sent a four-person team to lure Sasuke to take refuge in himself. The benefits of doing so are obvious:
(1) Let Sasuke know that the final form of mantras can enhance combat effectiveness, and the temptation to Sasuke is fatal. After experiencing the result that the quartet was completely at a disadvantage against Yinren, Sasuke was more eager to increase the power of mantras. (2) Let Sasuke know the advantages and disadvantages of the mantra through Yinren Group, and let him know that if he doesn't defect and take refuge in orochimaru, he will only die.
But Sasuke couldn't do it even if he didn't want to take refuge in orochimaru, because Sasuke couldn't finish the goal of revenge on ferrets before he died.
In this way, orochimaru's open plan succeeded. On the one hand, it gives Sasuke a chance to improve his strength and take revenge on the weasel. On the other hand, we also found a suitable carrier for reincarnation. Sasuke, if you don't go, obviously, as the number of spells increases, you will eventually advance. But even if you go to orochimaru and are controlled by orochimaru, at least you still have a chance to live and save your strength to take revenge on ferrets. Therefore, Sasuke is excusable to go to orochimaru when time is tight.
Although orochimaru was restrained by ferrets, Kakashi could not compare with him in both fighting ability and experience. Sasuke killed ferrets and went to orochimaru, which was a very Meiji choice.
Orochimaru, as one of the legendary three forbearance, has movie-level strength, while Kakashi was an elite forbearance at best. In terms of ability, Sasuke's probability of going to orochimaru to learn something good is much higher than that of staying in Muye Village, and orochimaru spared no effort to improve Sasuke's strength, obviously having his own career.
On the one hand, Sasuke's hatred of ferrets can be used against ferrets. Orochimaru didn't deal with ferrets. It is good for orochimaru if there is a role restriction that is not suppressed by sharingan's ability. On the other hand, there is a need for reincarnation. For orochimaru, the stronger the reincarnation ability of an individual, the stronger his ability will be. So cultivating Sasuke is to get a good reincarnation carrier.
In this way, Sasuke's resources in orochimaru are all used casually, and orochimaru can't use Ninjutsu after being sealed by three generations of Huo Ying, so he urgently needs a suitable reincarnation carrier, so he tries his best to cultivate Sasuke, so that Sasuke's desire to improve his strength quickly in a short time can be realized, and at the same time, Sasuke can master the use of the seal and avoid premature death due to operational mistakes.
Orochimaru has been looking for ways to deal with skunks since he was attacked by skunks once. If Sasuke's body is taken away, then the illusion skills against the skunk sharingan will not suffer too much. This idea also gives Sasuke an urgent opportunity to grow up, and Sasuke obviously knows orochimaru's demands, but people have to bow their heads under the eaves, and Sasuke will be swallowed up by the spell sooner or later if he doesn't study with orochimaru. Even if Sasuke can get rid of orochimaru for a while, we can't ignore that orochimaru is really a good teacher.
In addition to the reasons for the improvement of strength, Sasuke still has the heart to compare with orochimaru. In fact, the relationship between early Naruto and Sasuke was not very good, and they were always competing and comparing with each other. After Jiraiya was in charge of guiding Naruto, Naruto's strength improved rapidly, but in fact Sasuke thought that the rapid improvement of Naruto's ability was not entirely due to his own talent, but thanks to Jiraiya, one of his mentors.
So in Sasuke's subconscious, I also want to find a powerful ninja who is similar to Jiraiya's level as my teacher, just like the orochimaru world throws an olive branch to Sasuke. Just in line with Sasuke's inner thoughts: Naruto, your strength has improved rapidly because of having a good teacher. Now I have orochimaru, one of Konoha's three forbearance, to tutor me, and it will be easy to crush you completely in the future. The superposition of various reasons led to Sasuke Uchiha's decision to defect to Muye Village and take refuge in orochimaru.
Finally, to sum up, I personally think Sasuke was a very wise choice to take refuge in orochimaru. On the one hand, he can get deeper guidance than Kakashi, on the other hand, he can reduce and control the erosion of spells on his body. If Sasuke doesn't go, he may die because of the erosion of the mantra on his body. Please forgive me if the analysis is not in place. If you have other ideas, please leave a message to discuss.