Correspondence, in the sense specified, is the
nature of truth, the meaning of truth;
yet the test of truth that we most frequently employ in
connection with the past is the test of coherence: historians and archeologists have nothing available to them that is not given in the present — this book, the reliability of which must be evaluated; this artifact, the significance of which must be construed — and coherence is the final test of their theories about the past built up from the givens of the present.
The igloo shape had the function of reminding the
connection the humans had
with nature, because the igloo was (and in some places still is) the only way the humans had to build a shelter, when the technology was not developed
yet.