Zhan Chen took a brief rest to restore his soul power and spirit. His soul was already at the peak of sage realm but his body was still limited to his cultivation level. So, it was quite a burden for him to exert soul power exceeding the limit of the Heavenly tribulation realm.
Zhan Chen sat cross legged and meditated silently. He didn't use the Celestial yinyang Sutra rather he chose to do some simple meditation and breathing practices. He took his time in meditation and gradually the exhaustion and fatigue washed away.
Zhan Chen decided to stop after half a day's time passed. He was feeling completely invigorated after half a day's of silent meditation and breathing practices. 'Let's head back to the Yellow stone city', he thought to himself. He used Cloud soaring technique and flew towards the distance. It took another two hours for him to reach the Yellow stone city. He was amazed by the amount of security deployed to protect the Yellow stone city.