Wall - Physiological Wall

Physiological Wall

In marathon running a runner can 'hit' 'the wall'. A point where the human brain and body feels like it cannot be pushed further or continue. Runners find this incredibly hard to break through and continue.

A wall can also refer to something that the human mind is blocking or hiding from memory but this is debatable.

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Famous quotes containing the word wall:

    The mountain stood there to be pointed at.
    Pasture ran up the side a little way,
    And then there was a wall of trees with trunks;
    After that only tops of trees, and cliffs
    Imperfectly concealed among the leaves.
    Robert Frost (1874–1963)