He is the key
"So you are after immortality..."Elsa said as she looked at Maria in a curious manner, seeing that kind of curious look on Elsa's face Maria chuckled and nodded her head.
"Of course, I am after immortality, it was the only goal in my head all along, I cultivated diligently all those years and always wanted to reach the pinnacle of the cultivation world but alas just like my ancestors I am stuck in the Heavenly soul realm and couldn't able to reach the nascent soul realm even after trying so hard..." maria exclaimed and she continued while looking into elsa's direction.