Concepts of Nature in Shakespeare's "King Lear‪"‬

Of Shakespeare's four great tragedies, "King Lear" is remarkable for its vastness. Its largeness and expansiveness have been dwelt on by many critics.
What gives King Lear its large dimensions is mostly its preoccupation with nature in all its vastness. Nature plays in it as great a role as in no other of Shakespeare’s plays. ‘Nature’, indeed, serves as a ‘key-word’ of the drama.