All 3 Uses of

yoke
in
Jane Eyre

I rested my temples on the breast of temptation, and put my neck voluntarily under her yoke of flowers.
p. 430.9

yoke = "put my neck voluntarily under her yoke of flowers," is a metaphor for "voluntarily submitted" to temptation

They were under a yoke, — I could free them: they were scattered, — I could reunite them: the independence, the affluence which was mine, might be theirs too.
p. 445.3 *

yoke = oppressive burden

I should suffer often, no doubt, attached to him only in this capacity: my body would be under rather a stringent yoke, but my heart and mind would be free.
p. 470.1

Definitions:

(1) (yoke as in: the yoke of bondage)
an oppressive burden or something that limits freedom
(2) (yoke as in: oxen yoke)
a wooden frame used to join beasts of burden so they pull together, or a connected pair, or the connecting of a pair
(3) (meaning too rare to warrant focus)
meaning too rare to warrant focus:

See a comprehensive dictionary for less common senses of the word including:
- a clothing item from which fabric is hung
- a control apparatus for an airplane or ship