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.

705. 16:15 "Behold, I am coming as a thief. Blessed is he who watches, and preserves his garments." This symbolizes the Lord's advent and heaven then for people who look to Him and remain steadfast in a life in accordance with His precepts, which are the Word's truths.

To come as a thief, when said of the Lord, symbolizes His advent, and heaven then for people who have lived a good life, but hell for those who have lived an evil life, as may be seen in no. 164 above. That person is called blessed who receives eternal life (no. 639). To watch means, symbolically, to live spiritually, that is, to possess truths and live in accordance with them and look to the Lord (no. 158). And to preserve one's garments means, symbolically, to remain steadfast in those truths to the end of one's life. For garments symbolize truths that clothe (nos. 166, 212, 328), thus the Lord's precepts in the Word, because these are truths.

This meaning now follows in sequence from the preceding ones, for the subject before was the Lord's advent and a new church, and then an attack on that church by people of the former church; and because the conflict is at hand, those people who possess truths from the Word are admonished to remain steadfast in them, lest they succumb in the battle that is the subject of the following verse.