Walk
Walking represents living, and usually means living according to the true things taught to us by the Lord -- to "walk in His ways." When the Lord is pictured walking, it means life itself.
Ezekiel 23:2-3
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Son of man, there were two women, the daughters of one mother:
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and they played the prostitute in Egypt; they played the prostitute in their youth; there were their breasts pressed, and there was handled the bosom of their virginity.