Holiday Spirit is a consumable that can be obtained for a limited time, during the Christmas event in 2014.
How to obtain
After obtaining the Holiday Spirit and leaving the pocket, players can deliver the Holiday Spirit by engaging conversation with the Santa either outside the pocket or at LEGO Center. After the conversation, a message will pop up, and can be seen by all players in both Lego Center and Isle of Yarr. The player that delivered the Holiday Spirit, and those near the player, will get an temporary aura which grants them access to Green Stars for a short period of time (~1 hour).
If one does not deliver the Holiday Spirit, after logging out, the Holiday Spirit will be gone.