Spirit vessel- Transmigration of a once powerful cultivator.

A demon phoenix cultivator died in the hands of his beloved and was merged with a young master with the same name. Their souls were fused and now, the new Feng Fei Yun is struggling to become stronger and survive in the human world.
Will he meet his lover once again? Will they reconcile even though she is now a Goddess and he a mortal human? And what is the Spirit Vessel that took his soul to this world?