Rituals and Ceremonies

And may her bridegroom bring her to a house
Where all's accustomed, ceremonious;
For arrogance and hatred are the wares
Peddled in the thoroughfares.
How but in custom and in ceremony
Are innocence and beauty born?
Ceremony's a name for the rich horn,
And custom for the spreading laurel tree.
William Butler Yeats, A Prayer For My Daughter

All kinds of rituals, ceremonies, rites, etc..