As with Sisyphus, the boulder was painstakingly rolled upwards only to tumble back down again in an absurd exercise of futility.
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Related: upwards
Prev: At that time our relations were going upwards, but since then they have been going downwards [ downhill].
Next: It means, when you are accelerating upwards, as the elevator picks up speed, the reading on the spring will be more and you will feel heavy.
