Not that separation in the body is a hindrance to instruction.  The Creator, in the fulness of His love and wisdom, did not confine our minds within our bodies, nor the power of speaking to our tongues.  Ability to profit derives some advantage even from lapse of time; thus we are able to transmit instruction, not only to those who are dwelling far away, but even to those who are hereafter to be born.  And experience proves my words:  those who lived many years before teach posterity by instruction preserved in their writings; and we, though so far separated in the body, are always near in thought, and converse together with ease.