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 23:28-29
28
For thus says the Lord Yahweh: Behold, I will deliver you into the hand of them whom you hate, into the hand of them from whom your soul is alienated;
29
and they shall deal with you in hatred, and shall take away all your labor, and shall leave you naked and bare; and the nakedness of your prostitution shall be uncovered, both your lewdness and your prostitution.