From the ask game: what is your oc's favorite holiday?
Lucent is a big fan of All Saint's Wake! Back in Sharlayan, the clinic he volunteered at would throw a party for the younger patients every year, and he would put together a different noulith-incorporating costume every time. Ask him about his "sagacious tonberry" costume
Sav kind of looks upon all present-day holidays (particularly any involving the Twelve) with a mix of bemused amusement and nostalgia. I think he finds it hard to be in the festivities unless he's with someone - too many memories, otherwise. Too easy to drift off into the past. If You Know His Deal, he's more than glad to tell you about how the various holidays have changed over time, the traditions that survived across each era, and so forth.
I don't know if the doctor like... cares about holidays, really... he is Aware of them but they hold little personal significance for him beyond sometimes doing stuff with his friends that are kind of holiday flavored. The exception is Whitsun, and his attention is more on the eggs themselves than the festivities, per se