SARVA by Anadi Christmas Rejoice Blend Oil Christmas Rejoice Oil Blend is a Limited Edition Essential Oil Blend Curated by Sarva especially for the Christmas Holiday Season. Blend of 3 Essential Oils. This blend Creates a Festive Holiday Spirit. This diffuser oil is perfect for personal use or to be gifted to a loved one. Aromatherapy is well-known for its ability to relieve and help you relax quickly.