These original 7 sisters of New Orleans - glass candles were made by Voodoo-priest particularly after old rituals.
They contained already oils, smoking, herbs and further added.
On each candle - in English language - p.e. calling, prayers, ritual guidances o. are ae. attached.
The longer one it to burn leaves, the better results are obtained.
(burning duration approx. 7 days/120 hours)

You can still strengthen the effect, by them itself and the candle during the ritual duration with suitable Anna Riva oil parfume
and suitable smoking or incense sticks of Anna Riva ignites.