2d. The perfection of this life consists in union with our Sovereign Good; and the greater the simplicity, the more perfect the union. It is for this reason that those who would be perfect are interiorly solicited by grace to become simple, that they may finally be capable of enjoying the _one thing_ necessary--that is, eternal unity. Then let us frequently say, in the depth of our hearts: _O unum necessarium, unum volo, unum quæro, unum mihi est necessarium, Deus meus et omnia._ (Oh, one thing necessary! Thee alone do I wish, do I seek, do I desire! Thou art all that I need, O my God and my all!) 3d. Meditation is very good in its time, and very useful at the beginning of the spiritual life; but we must not stop at it, as the soul by her fidelity to mortification, and recollection, usually receives a purer and more intimate form of prayer which may be called the prayer of “simplicity.” It consists in a simple and loving attention, or contemplation of some divine object, either of God in Himself or some of His perfections, or of Jesus Christ or some of His mysteries, or some other of the Christian truths. Then the soul, abandoning all reasoning, falls into a sweet contemplation which keeps her tranquil, attentive, and susceptible of the operations and the divine impressions which the Holy Spirit communicates to her: she does little, and receives much; her labor is sweet, and yet most fruitful; and as she approaches nearer to the source of all light, all grace, all virtue, she also receives more. 4th. The practice of this prayer should begin at our awakening by an act of faith in the presence of God, who is everywhere, and in Jesus Christ, whose eyes never leave us though we were buried in the centre of the earth. This act is made sensibly, in the usual manner; for example, by saying interiorly, “I believe that my God is present;” or by a simple thought of faith in God present with us, which is a purer and more spiritual act.