As I turned away, I saw Holmes, with his back against a rock and his arms folded, gazing down at the rush of the waters. It was the last that I was ever destined to see of him in this world. - Watson.
The talker has found a hearer but not a listener; and though he may talk his very best for his own sake, you will find that his mental movements are erratic: they have no fixed centre and no definite object. His talk is like the water of a canal whose banks have given way, which rolls aimlessly hither and thither, without fulfilling any useful function, though it is the same water which was so helpful and serviceable, when it was confined within clearly marked limits by the restraining force of its earthy boundaries.
We can make our minds so like still water that beings gather about us that they may see, it may be, their own images, and so live for a moment with a clearer, perhaps even with a fiercer life because of our quiet.
When we cast our bread upon the waters we can presume that someone downstream whose face we will never know will benefit from our action, as we who are downstream from another will profit from the grantor's gift.