With Han Li's strength, he naturally could peer into the true nature of this place.
This was actually a sea, a spiritual sea, existing in attachment to the Immortal Realm, and also one of the most dangerous places within it.
Without formidable strength, it would be best not to enter the spiritual sea, otherwise one's primordial spirit incarnation could be worn away, which could endanger reality, causing at the very least heavy damage and mental confusion to the primordial spirit, or at worst its complete obliteration.
Han Li was undaunted by the spiritual sea, but he had no desire to explore it now. His goal for the day was to enter the interior of the Immortal Realm.
Han Li looked ahead, the mist and haze unable to obstruct his vision. He saw a vast and magnificent world, emanating an ancient and vast aura.