A Wave is symbolized as one of the strongest forces on earth. so strength for one. also if you read more into it, its about faith, a wave is you against mother nature, you cannot control it, you just have to put your faith into it.
Spirit lead me where my trust is without borders. Let me walk upon the waters, wherever you would call me. "Oceans" - Hillsong I need these simple waves on my foot. In oceans deep, my faith will stand.