Both Uses of

Enlightenment
in
Ulysses, by James Joyce

I hope Mr Dedalus will work out his theory for the enlightenment of the public.
Chpt 9 *

the enlightenment = increased understanding

For the enlightenment of those who are not so intimately acquainted with the minutiae of the municipal abattoir as this morbidminded esthete and embryo philosopher who for all his overweening bumptiousness in things scientific can scarcely distinguish an acid from an alkali prides himself on being, it should perhaps be stated that staggering bob in the vile parlance of our lowerclass licensed victuallers signifies the cookable and eatable flesh of a calf newly dropped from its mother.
Chpt 14

Definitions:

(1) (enlightenment as in: provided for your enlightenment)
a state of increased understanding

Occasionally, enlightenment can refer more specifically to an elevated spiritual state. In Buddhism & Hinduism is would refer to achieving nirvana.
(2) (Enlightenment as in: during the Enlightenment...)
generally interpreted as a 17th & 18th century movement that further advanced the use of reason in the reappraisal of accepted ideas and social institutions -- especially in Britain, France, Germany, and the American colonies
(3) (meaning too rare to warrant focus)
meaning too rare to warrant focus:

Less commonly, enlightenment may be used as a proper noun with a non-standard specialized meaning.