simmering

"The character and duration of this enthusiasm varies with the state of the individual, from an ecstasy and trance and prophetic inspiration--to the faintest glow of virtuous emotion, in which form it warms, like our household fires, all the families and associations of men, and makes society possible...Everywhere the history of religion betrays a tendency to enthusiasm."
Emerson, "The Over-Soul"

"I was simmering, simmering, simmering; Emerson brought me to a boil."
Whitman

"'I sees! O Jesus! I sees!' and still another, without words, like bubbles rising in water."
Faulkner, The Sound and the Fury

Compare all, especially this last, to Durkheim's sense of "collective effervescence," the force of excitation as a social fact.