The Ten of Swords divides readers on a question that recurs throughout the deck: whether a card describing the worst outcome is permitted to be reassuring.
One school reads it as complete defeat and says so. The suit has run its full length, the situation is over, and the honest response is to name that rather than to hunt for consolation in the picture. Readers in this camp point out that querents can tell when they are being managed.
The other school reads the same card as release. Nothing further can be lost; the anxiety of anticipating the collapse is finished because the collapse has occurred; and the light on the horizon in Smith's version is there for a reason. On this account the card marks the end of a decline rather than its worst moment, and its arrival is genuinely good news arriving in bad clothes.
Both readings are defensible and both are widely taught. The distinguishing question is usually whether the querent is describing something they fear or something that has already happened. This card is much more reliable about the second.
A third reading treats the excess as diagnostic: a situation in which the querent has become invested in the totality of their defeat. Handled carelessly this becomes an accusation, and most experienced readers hold it back unless the spread supports it strongly.
Whatever is said about it, this is not a card to read in isolation, and the tens generally reward being read against the number that precedes them in the same suit.