The water to clean your heart is the Name of God
"Those who see the Great God in the moon, stars, earth, air, fire and water, and always meditate on Him only, get success in life and are true devotees."
"Of greatest importance is that the Repetition of God's Name (Japa) increase daily. In this way, your heart and mind will be purified and only then will you find God in yourself.
The mind can be purified only by Japa. This is the only medicine for the disease of the mind. While your mind and heart are impure, how can God live in your heart? The water to clean your heart is the Name of God. So teach everyone to repeat the Name of God--everywhere."
~ Mahaprabhuji Haidakhan Babaji ॐ