Cultivating from the late Xiantian stage to the Heavenly Connection stage as well as the supreme bottleneck that lay after, that between the Martial Scholar and Martial Grandmaster realms, the main thing that was required was comprehension, rather than being simply about grinding, slowly accumulating one's foundation.
Of course, some accumulation was still required, but it was definitely not something that could be achieved through pure bitter perseverance alone.
Especially for the breakthrough from the Heavenly Connection stage to the early Spirit Vessel Martial Grandmaster realm, whose difficulty surpassed that of any single breakthrough in the Martial Scholar realm before this.
The distance between the two realms truly lived up to its name of a heavenly gulf. Ever since ancient times, the number of martial practitioners who had been stuck at this bottleneck, wasting away the rest of their lives was far too many to count.