Avatar: The Last Airbender Season 3 Episode 6

Guru Pathik stated that if the Avatar had earthly attachments of affection, their seventh chakra would be locked and they would not be able to use the Avatar State. However, Roku easily uses the Avatar State in this episode, and is married, meaning he has earthly attachments of affection.

This episode reveals that when one Avatar dies, the next Avatar is born right away, as shown when Aang is born mere moments after Roku's death.

This episode occurs on the Summer Solstice, exactly six months after Book 1, Chapter 8: Avatar Roku, which occured on the Winter Solstice.

Whilst Aang may not be biologically related to Zuko, Aang is spiritually related to Zuko since Aang is Roku's reincarnation.

At the end of his training, Roku referred to it as bitter work. This is in reference to the second season episode Bitter Work in which Aang was struggling to learn earthbending.

When Sozin is landing from his jump at the beginning of the spar, the left flame of the ornament is red and his topknot is gold.

In the beginning of the episode, Prince Sozin gives Roku the hair piece that was supposed to be worn by the crown prince. Even on the night when Roku dies, we see it. This shows us that Roku cared about Sozin even when they were enemies.

When Sozin catches Roku's first attack when we first see them and it forms a sphere in his palm, Sozin's eyes lose their pupils and light. Simultaneously, the topknot above the ornament turns gold.

During the fight when Sozin shot a huge fire blast at Roku, we know that Roku who was still walking on the carpet went into the earth to avoid the blast. But moment later, we can see the carpet was completely intact.

Airbending is about controlling the flowing of air around the bender's body, but when Roku and his wife were escaping from the volcano, Roku shot a strong wind to create a tunnel with fresh air. However, since the air around Roku was all polluted, he couldn't possibly create a air tunnel with fresh air in it.

When Roku saw the colonies and went to talk to Sozin, his mustache was almost completely white, after a while when he finished attacking Sozin, his mustache became gray.

Toph's meteorite ornament is missing at the end of the episode.

When Roku died, he was not wearing the Crown Prince headpiece, yet his spirit always has in on.