I was meditating on what it means to be born of water and spirit. Thinking of the crucifixion, I was taken to the time after Jesus' death where the soldier pierced Jesus' side and water and blood came out. Could this "water" be what is referred to, signifying Christ's death and resurrection? The imagry of the soldiers being sprayed with His blood and water after piercing Him due to the effects of pericardial and pleural effusion is powerful. Due to the controversial nature of this passage, and differing opinions...plausible?