The concept of space and time has always been extremely difficult to master.
Even the entry level is tough.
This is the same for the Saints.
Aside from having a very long, almost infinite lifespan, Saints don't have much of an advantage over the Law Realm when it comes to comprehending the Heaven and Earth Principal Patterns.
Many Saints are only half-knowledgeable about the concept of space and have no understanding at all about the concept of time.
Dead Bone, possessing the Great Forces like Wraith Sacred Mountain and the Gate of the Netherworld, has dabbled in space, and with a slight research into space attainments, he soared rapidly.
He hasn't delved much into time, but Tianyuan City possesses a treasure known as the 'Time Sand'.
For a strong individual aspiring to research time, such a pure time-series treasure is the most suitable foundation for cultivation.
The Hall of Martial Souls, Tower of Challenge, and other legendary buildings also involve time.
