As the existence of water cannot satisfy the thirst of those who draw not from it, so also with Grace and truth. Their power is realized in our daily ingestion of them.
As Jesus said, they that follow after Him MUST eat of His body and drink of His blood. His body was broken to provide bread for life eternal (that we may know Him) and His Grace flows as water from His throne to sustain, refresh, enlighten, and illuminate as we walk with confidence in Him.