Maybe the water is a dream sign for you...... have you read about those? If it is something that you notice consistently in all of your dreams, or a large portion of them, it could be......

It is something for you to recognize, and look for, in your dreams to realize that you are dreaming.... and become lucid.

It sounds to me though that you just have strong lucid abilities now that you have begun thinking about it....... all things that happen in our dreams, are, as you know, manifestations of things within ourselves, so the chanting may just be your thoughts.... telling you forcefully or repeatedly to become lucid......

and lucky for you it seems to be working! I once walked by a woman asking someone else if they were dreaming, but did not ask myself.....

How long have you been interested in/working with lucid dreaming, cause it seems to come easily to you.... I joined over a month ago and have not had one lucid since.....