Explaining Heavenly Dao Sutra in Detail

Let me explain the Heavenly Dao Sutra in detail now. This might help you understand it better (might be edited in the future).

The Heavenly Dao Sutra (Humans/Spirit Master) has 10 levels, as follows:

Level 0: Starting point when you begin learning and don't actually understand it yet.

Level 1: Achievable through hard work, persistence, and time. At this level, you unlock almost all functions of the Heavenly Dao Sutra, including soul power (qi) cultivation, a chance for special ability manifestation (upon obtaining the first spirit ring), and an increase in physique. Cultivating to the peak of this level before Martial Soul awakening grants Innate Full Soul Power, boosting your talent to that of those who are born with it. Achieving this level before Martial Soul Awakening from scratch is exceedingly rare, akin to a one-in-a-million or even one-in-a-billion occurrence.

Level 2: Also attainable with hard work and time. This level includes all functions of Level 1, plus the total assimilation of your previous spirit ring into your Martial Soul, making it growable, and a special ability upgrade (upon obtaining the second spirit ring).

Level 3: Requires a bit of talent and comprehension. This level represents a threshold where bottlenecks start to appear. Breaking through this bottleneck can be achieved through talent, comprehension, or fortuitous opportunities. All functions of the Heavenly Dao Sutra are available at this level, along with another special ability upgrade + Increase in lifespan.

From Levels 0 to 3, comprehension plays a significant role, rather than talent.

Level 4: Progression requires both talent and comprehension. All functions available and upgraded (except cultivation speed) and special abilities continue to upgrade with each level.

Level 5: All Functions + First Metamorphosis

Beyond: ???

Other effects might be added in the future.

The Heavenly Dao technique does not necessarily need to match your soul power or spirit ring levels. Practitioners can indeed cultivate soul power using other techniques and resources. However, it's essential to note that only by cultivating the soul power cultivation technique provided by the Heavenly Dao Sutra can one break through innate limitations, such as talent and potential. Soul Power cultivated by the Heavenly Dao Sutra is also denser and purer compared to other techniques

The Heavenly Dao Sutra (Animals and Plants): They cultivate it instinctively, akin to how humans breathe, until they reach the 3rd level of the technique. At this point, they gain spirituality and intelligence, after which they experience bottlenecks similar to humans. 

Besides sharing similar functions with humans (except for the growable spirit ring, as all their spirit rings are already perfectly assimilated into their Martial Soul [If the Spirit Beast is transformed human]), Animals and Plants will also experience an increase in bloodline purity and have a chance to evolve into superior species. It's worth noting that this evolution only occurs within the same species, meaning, for example, a rabbit can't evolve into a monkey.

Now, let's discuss the main character's perks as the creator. There aren't many; he simply gain an additional special ability each time the Heavenly Dao Sutra advances a level.