1- Dreaming of being in an arena either as a player or as a spectator highlights the fact that we may need to make the decision to move into a specifically created environment, one which gives more room for self-expression and creativity or theatricality.
2- We are developing a new focus of attention, or an area of conflict. This conflict may need to be brought out into the open, into open forum.
3- Today sport is often used as an energy release. Spiritually, an arena suggests a ritualised conflict.... Ten Thousand Dream Dictionary