The sacredness of any celebration is dependent upon the quality of spirit present. The quality of spirit is greater to the degree that you are fully present, with minimal inhibitions about expressing your joy and happiness through physical movement. Focus on what you want to celebrate put on some music and dance and sing a song while you do.
Gods wish is for everyone to enjoy their time on earth and part of that wish is to celebrate your capacity to be joyous and express it through your body. Let music song and dance be a part of your sacred ceremony regardless of what you are celebrating for truly any celebration is sacred.