He couldn't help but feel weak, insignificant and ignorant after what the system had informed him about how far one could go in terms of cultivation and the system also implied that there were more Cultivation Realms after the Mortal Cultivation Realm.
But instead of feeling discouraged or overwhelmed, Adam was excited to explore the higher cultivation levels, while also finding out more about the world and cultivation.
It had also revealed to him that there weren't any cultivators within his vicinity which had surpassed the Advanced Level of the Mortal Realm within his vicinity, apart from his master that would have been at a higher cultivation level, if it wasn't for him sacrificing his cultivation to extend his lifespan through a forbidden method.