Athan and Reikent didn't stay there anymore after Athan finished absorbing the benefits from the crimson power pool.
Athan returned to his abode while Reikent went to do his own things, which Athan didn't know.
After returning, Athan directly started his training after sitting in meditation.
...
Minutes turned into hours, hours into days, and days into months as Athan continued to train to make his connection to the source dimension deeper.
While Athan was training to make his connection to the source dimension deeper, Tiana, Avelia, and others were also training at a different place.
They weren't together and were each in a small room but the small room was mystical as light blue clouds and sparks filled each room as they were in deep meditation with the most peaceful expression on their faces.