"Thirst exists because water exists."
Walking on the desert, one can easily mistake a mirage for the oasis containing the water and rest he yearns and searches for.
Chasing after the mirage, one will keep on chasing, with his thirst and dissatisfaction growing.
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But only the fool curses his thirst, rather than his folly of chasing illusions to quench his thirst.
The wise one treads on, unperturbed, and eventually discovers the true oasis where his thirst is satisfied and he can rest.