The alb is supposed to be symbolical of purity, and the priest, when putting it on, prays: "Make me white and purify my heart, 0 Lord," &c. In the middle ages the parures, which originally had no mystic intention whatever, were taken to symbolize the wounds of Christ; whence probably is derived the custom surviving at the cathedral of Toledo, of the singers of the Passion on Good Friday being vested in apparelled albs.
Additionally, and less abstractly, energy is needed to power refrigerators, purify water, transport food, manufacture medicines, print books, power computers, operate dialysis machines, and do a million other activities that are themselves embodiments of prosperity.
Water isn't free; someone is paying a bill to purify the water that comes through that fountain.
They cause that in all the universe men purify and sanctify their hearts, and clothe themselves in their holiday garments to offer sacrifices and oblations to their ancestors.
And believe me, if I still value my life it is only because I still hope to meet such a divine creature, who will regenerate, purify, and elevate me.