Ash flew towards Saphira and swirled in front of her and that caught Saphira's attention. She stopped attacking and focused on Ash where realisation hit her upon who Ash was. She then looked down and saw Elisa standing, looking at her.
"Elisa?" Saphira spoke and of course, no one else but Elisa could hear her. Only Dragon God, Abus, can choose who he wants to listen to him or not. Only he can communicate with normal beings without the barrier of telekinesis or an unidentified language.
Only a Master mage can have control over any Dragon since they have power over them except for Abus, but they have good relations with him. This is the reason only a Master mage had ever controlled a dragon, which is because they hold power over them and they can communicate with them with ease.