play, enjoyment
遨 centers on leisurely movement for pleasure: playing, roaming, and enjoying oneself freely.
遨 combines the movement radical 辶 with 敖, which likely contributes the sound and the idea of roaming or leisure. The exact historical development of 敖 is uncertain.
The movement radical 辶 wraps around 敖, suggesting a person strolling around freely. Picture someone wandering through a park, playing and enjoying the day.
For ゴウ, imagine a playful ghost (ゴースト) drifting around: ghost -> ゴウ, and the ghost enjoys roaming freely like the kanji's meaning.