Personification is giving human trait to nature or nonhuman.
"Hold their communion there"
"He" and it's nominative.
Nominative pronouns include pronouns that are more often than not used as subjects such as "he", "she", "they, "I", "we", or "who".
<span>What the sentence said was:
That the events of the legend of Lech Prus and Czechu may be fictitious</span>
What she means is that old fears are hard to get rid of and can be annoying
