In many churches that I've visited, they give me Incense, and they use it in many ceremonies.
Incense is used in worship by Christians since antiquity, most of all in the Eastern Churches. It is an old practice rooted in the traditions of Judaism or even before. Is a mystical symbol as the prayer of the believer is raising to heaven. In Islam, Muslims sometimes use the Incense in the cemetery in the graves of the saints or the loved ones. Incense may also be used in the practices of certain Sufi orders.
