I came across the simile of lust as debt in one of my notebooks, and found it interesting to reflect on:
"There is a man who has incurred a debt but has become ruined. Now, if his creditors, when telling him to pay back the debt, speak roughly to him or harass and beat him, he is unable to retaliate but has to bear it all. It is his debt that causes this forbearance.
In the same way, if a man is filled with sensual desire for a certain person, he will, full of craving for that object of his desire, be attached to it. Even if spoken to roughly by that person, or harassed or beaten, he will bear it all. It is his sensual desire that causes this forbearance. In that way, sensual desire is like being in debt."
The above is from the commentary to DN 2, which contains the following passage to lay out some similes for freedom from the hindrances:
"Just as when a man taking a loan, engages in a trade, and his trade succeeds, he now not only disposes of his old debt but he has also, beyond that, a surplus for maintaining a wife. And at that he rejoices, is glad at heart...
Just as when a man is sick and in pain, suffering from a grave disease, his food does not agree with him, and he has no strength left in his body. But some time later he recovers from that sickness; he can again digest his food, and he regains his strength. And at that he rejoices, is glad at heart...
Just as when a man has been thrown into prison, but some time later he is released from prison; he is safe and without fears, and he did not suffer any loss of property. And at that he rejoices, is glad at heart...
Just as when a man is a slave, not independent, but dependent on others, unable to go where he likes, but some time later he is set free from slavery, is now independent, no longer dependent on others, a freeman who can go where he wants. And at that he rejoices, is glad at heart...
Just as when a man, rich and prosperous, travels through a wilderness where there is no food and much danger, but some time later he has crossed the desert, and gradually reaches safely the vicinity of a village, a place of safety, free from danger. And at that he rejoices, is glad at heart.:
Similarly, so long as these five hindrances are not abandoned in him, a monk considers himself as indebted, as ailing, as imprisoned, as enslaved, as traveling in a wilderness." (end qutoe)
To summarize, the simles are lust as debt, ill will as a disease, sloth and torpor as a prison, restlessness and remorse as slavery, doubt as journey through a dangerous desert without a map.
There are also the similes related to the clarity of water, but maybe we could discuss the above first.
(I'm putting it here rather than in Classical Theravada because I think we're not supposed to discuss in light of our experience in C.T, right? But I think it might be interesting to share experience with dealing with these hindrances )
Kammalakkhano , bhikkhave, bālo, kammalakkhano pandito, apadānasobhanī paññāti
(The fool is characterized by his/her actions/the wise one is characterized by his/her actions/Wisdom shines forth in behaviour.)
(AN 3.2 Lakkhana Sutta)