Love how Aang had to sneak into the Fire Nation on a specific day of the year to get Roku to start talking to him while Kyoshi came back from the Spirit World just to tell a group of villagers “YES I DID kill your ancestor because he was a COLONIZER what are you going to DO about it??”
theres actually a reason for that! its because the first contact with a past life takes a lot of spirituality and is incredibly difficult. But once its done it gets easier! like the initial door is hard to open but all the doors behind it are easy