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Epiphanies is a Christian festival that celebrates the revelation or enlightenment. Here epiphanies are used metaphorically to suggest moments when the author suddenly becomes conscious of something that is very important to her.
The author experienced the rare of the rarest experiences there in Antarctica both in relation to beauty, wonder, and geological phenomena. Such masterly geological epiphany was experienced by her when the Akademik Shokalskiy got wedged into a thick white stretch of ice between the peninsula and Tadpole Island. The captain decided to turn around and asked the passengers to walk on the ocean. They kitted out in Gore-Tex and glares, walking on a white sheet of ice. Underneath their feet was a metre-thick ice pack. And underneath that, 180 metres of living breathing, saltwater lay before them. In the periphery, crabeater seals were stretching and sunning themselves on ice floes. They were doing so like stray clogs will do under the shade of a banyan tree. It was nothing short of revelation. The author saw in it that everything does indeed connect. This really proved to be the most wonderful experience of all experiences of Antarctica.