The biblical passage which says of Abraham and the three visiting angels: "And He stood over them under the tree and they did eat" is interpreted by Rabbi Zusya to the effect that man stands above the angels, because he knows something unknown to them, namely, that eating may be hallowed by the eater's intention.... Any natural act, if hallowed, leads to God, and nature needs man for what no angel can perform on it, namely, its hallowing.
Martin BuberEverything is full of sacramental substance, everything. Each thing and each function is ever ready to light up into a sacrament.
Martin Buber