Our Blessed Lord used an illustration of this mystery, “You cannot understand the blowing of the wind, but you obey its laws and thus harness its force; so also with the Spirit. Obey the law of the wind, and it will fill your sails and carry you onward. Obey the law of the Spirit and you will know the new birth. Do not postpone relationship with this law simply because you cannot fathom its mystery intellectually.