Burning incense often means that divine blessing is spread or that a place is being sanctified.
Early that fall the Viking came home with his booty and captives. Among the prisoners was a young Christian priest, one of those who preached against the northern gods. Of late there had been much talk in hall and bower about the new faith that was spreading up from the south, and for which St. Ansgarius had won converts as far north as Hedeby on the Slie. Even young Helga had heard of this faith in the White Christ, who so loved mankind that he had given His life to save them. But as far as she was concerned, as the saying goes, such talk had come in one ear and gone out the other. Love was a meaningless word to her except during those hours when, behind closed doors, she sat shriveled up as a frog. But the Viking's wife had heard the talk, and she felt strangely moved by the stories that were told about the Son of the one true God.
Back from their raid, the Vikings told about glorious temples of costly hewn stone, raised in honor of Him whose message is one of love. They had brought home with them two massive vessels, artistically wrought in gold, and from these came the scent of strange spices. They were censers, which the Christian priests swung before altars where blood never flowed, but instead the bread and wine were changed into the body and blood of Him who had given Himself for generations yet unborn.
"Daughter of the marsh," the priest said, "out of the earth and the marsh you came, and from this earth you shall rise again. The light in you that is not of the sun but of God, shall return to its source, remembering the body in which it has lain. No soul shall be lost. Things temporal are full of emptiness, but things eternal are the source of life. I come from the land of the dead. Some day, you too shall pass through the deep valley to the shining mountain tops, where compassion and perfection dwell. I cannot lead you to receive Christian baptism at Hedeby, for you must first break the watery veil that covers the deep marsh, and bring out of its depths the living source of your birth and your being. You must perform a blessed act before you may be blessed."
He lifted her on the horse, and put in her hand a golden censer, like the ones she had seen in the Viking's castle. From it rose a sweet incense, and the wound in the martyr's forehead shone like a diadem. He took the cross from the grave, and raised it high as they rose swiftly through the air, over the rustling woods and over the mounds where the heroes of old are buried, each astride his dead war horse. These mighty warriors rose and rode up to the top of the mounds. Golden crowns shone on their foreheads in the moonlight, and their cloaks billowed behind them in the night wind. The dragon on guard over his treasure also lifted his head and watched them pass. Goblins peered up from their hills and hollows, where they swarmed to and fro with red, blue, and green lights as numerous as the sparks of burning paper.
Away over the forest and heath, river and swamp, they hastened until they circled over the Wild Marsh. The priest held aloft the cross, which shone like gold. From his lips fell holy prayers. Little Helga joined in the hymns that he sang, as a child follows its mother's song. She swung the censer, and it gave forth a churchly incense so miraculously fragrant that the reeds and sedges burst into bloom, every seed in the depths sent forth stalks, and all things flourished that had a spark of life within them. Water lilies spread over the surface of the pool like a carpet patterned with flowers, and on this carpet a young and beautiful woman lay asleep. Helga thought this was her own reflection, mirrored in the unruffled water. But what she saw was her mother, the Princess from the land of the Nile, who had become the Marsh King's wife.
The martyred priest commanded that the sleeper be lifted up on horseback. Under this new burden the horse sank down as though his body were an empty, wind-blown shroud. But the sign of the cross lent strength to the spectral horse, and he carried all three riders back to solid earth.
Then crowed the cock in the Viking's castle, and the spectral figures became a part of the mist that drove before the wind. But the Egyptian Princess and her daughter were left there, face to face.
Especially the first sentences of this quote are curious:
"Daughter of the marsh," the priest said, "out of the earth and the marsh you came, and from this earth you shall rise again. The light in you that is not of the sun but of God, shall return to its source, remembering the body in which it has lain. (...)"
Baptism and burial in one! The word "body" does not refer to the flesh and blood, but to her inner nature – it means that her essence is of spirit, and that this spirit strives towards its source, i.e. God, who is characterized as light and spirit.