(Old High German: dinsan, to draw out, as in forming a chain)
Expression of feeling by rhythmical movement of the body, mentioned in Scripture as expressing joy on the part of the women of Israel, led by Mary, the sister of Moses (Exodus 15), and of David before the Ark (2 Kings).
It has been employed often in religious functions, as in places in Spain today, to add splendor to the ceremonial.
It may be a means of relaxation and of physical culture if indulged in with moderation and with the proper company, but often an occasion of vulgarity and even of sinfulness when the rhythm and movements are obviously improper, or when, howsoever correct the movement, the partner is not modest.
New Catholic Dictionary