Jacob obeyed a good instinct when he set up as a monumental stone that which had served as his pillow while he dreamt and saw this inspiring vision. He felt that, vivid as the impression on his mind then was, it would tend to fade, and he erected this stone that in after days he might have a witness that would testify to his present assurance. One great secret in the growth of character is the art of prolonging the quickening power of right ideas, of perpetuating just and inspiring impressions. And he who despises the aid of all external helps for the accomplishment of this object is not likely to succeed. Religion, some men say, is an inward thing: it does not consist of public worship, ordinances, and so forth, but it is a state of spirit. Very true; but he knows little of human nature who fancies a state of spirit can be maintained without the aid of external reminders, presentations to eye and ear of central religious truths and facts. We have all of us had such views of truth, and such corresponding desires and purposes, as would transform us were they only permanent. But what a night has settled on our past, how little have we found skill to prolong the benefit arising from particular events or occasions. Some parts of our life, indeed, require no monument, there is nothing _there_ we would ever again think of, if possible; but, alas! these, for the most part, have erected monuments of their own, to which, as with a sad fascination, our eyes are ever turning--persons we have injured, or who, somehow, so remind us of sin, that we shrink from meeting them--places to which sins of ours have attached a reproachful meaning. And these natural monuments must be imitated in the life of grace. By fixed hours of worship, by rules and habits of devotion, by public worship, and especially by the monumental ordinance of the Lord's Supper, must we cherish the memory of known truth, and deepen former impressions. To the monument Jacob attached a vow, so that when he returned to that spot the stone might remind him of the dependence on God he now felt, of the precarious situation he was in when this vision appeared, and of all the help God had afterwards given him. He seems to have taken up the meaning of that endless chain of angels ceaselessly coming down full of blessing, and going up empty of all but desires, requests, aspirations. And if we are to live with clean conscience and with heart open to God, we must so live that the messengers who bring God's blessings to us shall not have an evil report to take back of the manner in which we have received and spent His bounty.