No Richard, that page is just plain wrong. The position of the winter solstice (the farthest point south the sun reaches in the sky) also happens to be the place where the ecliptic (which represents the sun's path across the sky) crosses the galactic equator. This is, by itself an interesting coincidence as another recent thread discussed. However, it does mean that every year on the winter solstice the sun passes through that point. No pseudo-Mayan pseudomysticism required. Likewise, at the summer solstice the sun passes through the equivalent point in the northern sky. So far from being rare, the sun passes through the intersections twice a year on the two solstices. Tell your friend what Wolfgang said....

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"I often say that when you can measure what you are speaking about, and express it in numbers, you know something about it; but when you cannot measure it, when you cannot express it in numbers, your knowledge is of a meagre and unsatisfactory kind." - William Thompson, 1st Baron Lord Kelvin

"If it was so, it might be, and if it were so, it would be, but as it isn't, it ain't. That's logic!" - Tweedledee

This isn't right. This isn't even wrong. - Wolfgang Pauli