luz al final del túnel 21
As an expression it has a comparative meaning, it is based on the situation of walking through a tunnel, supposedly dark, and seeing the clarity at the end indicating an exit; From there the light is interpreted as "the solution sought in the midst of a dark problem". However, there is another interpretation related to the near-death experience, where those who were able to return from 'clinical death' report having seen a tunnel with a very bright light at the end, which is supposed to be the final place where our soul travels; Although neurologists say it's just the effect of lack of oxygen on the brain.
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