Presence and Sacred Sites

Can Presence tokens destroyed by Blight be added to the island?
Only if an effect explicitly says to add "destroyed Presence".

Very few effects currently let you add destroyed Presence, like the Steady Regeneration special rule for A Spread of Rampant Green or the major power Blazing Renewal.
(Discussion elsewhere)  Tags: Presence, Growth

What happens to Presence when it gets removed or replaced?
It goes to the destroyed Presence pile in the supply unless the particular effect says to put it elsewhere. From there, it can be restored by any effect that returns destroyed Presence to the island.

As of the release of Nature Incarnate, only four Presence-removing/replacing effects send the Presence somewhere special: "Transform to a Murderous Darkness," "Call Forth Predators" (Sharp Fangs Behind the Leaves special rule), and both Bargains remove replaced Presence from the game. (Though Bargains put the Presence on reminder cards, this is just to help players track how many times they made the Bargain; Bargains scale with the number of times they are made, not the number of Presence on the reminder card.
Tags: Replace, Presence, Remove, Bargain, 10 more...

Can cascading Blight kill Presence twice?
Yes, it can. Each time you add one or more Blight to a given land - including cascades - destroy 1 Presence from every Spirit there. (p. 15)

So if you had a hideously bad cascade that added Blight to 4 different lands, in each of those 4 lands you'd destroy a Presence from each Spirit.

In the very odd case that you decided to double-back a Blight cascade to hit the same land a second time, you'd again destroy 1 Presence from every Spirit there then continue cascading. This is nearly always a terrible idea.
(Discussion elsewhere)  Tags: Blight, Presence

Can you place Presence into lands with Blight?
Yes. Blight destroys Presence only when it's added.

If a Spirit is so sensitive to Blight that it has trouble adding Presence to lands having any, its Growth choices will explicitly reflect that. (eg: Keeper of the Forbidden Wilds, Serpent Slumbering Beneath the Island.)

To draw a parallel: if you're in a house when it catches fire, you can die. But if you move into the half-charred ruin a year later, you don't suddenly burn to death.
(Discussion elsewhere)  Tags: Presence, Blight, Growth

When Blight is moved into a land, does it destroy Presence or cause cascades?
No, Blight only destroys Presence when it is added to the board, not when it is moved from one land to another. Likewise, moving Blight does not cause cascades. [B&C p. 15, JE p. 28]
(Discussion elsewhere) (Discussion elsewhere)  Tags: Presence, Blight, Absorb Corruption, Flow Like Water, Reach Like Air, 8 more...

If all my Presence from my Spirit Panel is placed on the board, how do I add more?
Whenever adding Presence, instead of taking from your Presence Tracks you can use Presence (of yours) already on the island instead. [sidebar, p. 14]. You can take it out of any land.

While this option is most often relevant if your Presence tracks are empty, it's not a requirement for doing so.

You cannot place destroyed Presence unless an effect explicitly says so.
(Discussion elsewhere)  Tags: Presence, Growth