Ultra Instinct is a form that can only be achieved by a select few in the world of Dragon Ball. Usually, it is a state that can only be used by the Angels, and maybe some Gods of Destruction. Although, anyone can attain this form, with the right training. Ultra Instinct is a power that enables a person to perceive movements without having to think about it.

In a way, the body of the user moves on its own, and it is also known as the mastery of Self-movement, which pretty much explains what this is all about. This technique is very common among the Gods. They all know about it. However, very few Gods can do it. Even some Gods of Destruction haven’t perfected this yet, like Beerus.

However, there is a big difference between Goku’s current Ultra Instinct, and the finished version. That’s right! What he have right now, is not the finished product. Goku’s current form is known as Ultra Instinct ‘Omen’, or Migatte no Gokui ‘Kizashi’. To characters like Beerus and Whis, this form is natural. Basically, they don’t need to transform into a whole new form to be able to use it.

But, with Goku, things are slightly different. He needs to transform before he can use this power. So, Goku isn’t quite there yet. Ultra Instinct Kizashi is definitely different from Ultra Instinct, in the sense that it is just an ‘Omen’, or a ‘sign’ of the awakening of the real thing.

Toei Animation themselves have been promoting Ultra Instinct Goku as a new form rather than a new ability. So, what I think is happening here is, Goku hasn’t been able to tap into the true potential of the Ultra Instinct, and he hasn’t mastered this form yet. Basically, the Ultra Instinct that we’ve seen is a prelude to the real form. It is just an Omen, a sign, or a symptom of the awakening of the real thing.

As Goku continues using Ultra Instinct, he gets better by the second. We know for a fact that Goku was a lot stronger vs Kafla than he was against Jiren. He’s improving, and Whis even said that Goku cannot utilize the full potential of this technique just yet. The real Ultra Instinct will likely appear towards the end of the Tournament of Power, and Goku will be in complete control of the form. The Heat that he is constantly emitting won’t be there in my opinion, and I don’t think he’ll need to transform drastically to be able to use it. But, those are just my thoughts. We’ll find out more about it as the series goes on.