At best they invite some gods and beings of the vital world where much falsehood is mixed with fragments of truth, at worst they invoke certain dangerous forces in the atmosphere.
There is no harm in the vital taking part in the joy of the rest of the being; it is the participation of the vital that makes it dynamic and communicates it to the external nature.
About Savitri | B1C1-09 Advent of the Divine Mother (p.4)