This is the secret of the unity of God: no matter where I take hold of a shred of it, I hold the whole of it. And since the teachings and all the commandments are radiations of his being, he who lovingly does one commandment utterly and to the core, and in this one commandment takes hold of a shred of the unity of God, holds the whole of it in his hand, and has fulfilled all.

(Martin Buber)