The "fullness of Christ" is a concept that can be interpreted in several aspects...
The "fullness of Christ" is a concept that can be interpreted in several aspects.
1) The fullness of the presence of our Lord Jesus Christ. This is, in fact, the reason why Christians gather in the Church, as the Lord Himself said about it: "For where two or three are gathered together in My name, I am there in the midst of them" (Matthew 18:20). Furthermore, the Lord says about this: "If anyone loves Me, he will keep My word; and My Father will love him, and We will come to him and make Our home with him" (John 14:24). The Greek word can be translated as a) dwelling, b) rest, c) abiding. It is speaking of the presence of God in a person's life.
2) The Apostle Paul in the Epistle to the Ephesians says: "till we all come to the unity of the faith and of the knowledge of the Son of God, to a perfect man, to the measure of the stature of the fullness of Christ" (Ephesians 4:13). The last words can also be translated as "to the measure of the age of the fullness of Christ." The Apostle is saying that the life of a Christian is directed towards being able, following the apostle himself, to say: "it is no longer I who live, but Christ lives in me" (Galatians 2:20). The apostle also says about this: "Imitate me, just as I also imitate Christ" (1 Corinthians 11:1).
The fullness of Christ, undoubtedly, cannot be adequately described in words; however, these two aspects allow us to identify the main point.
As for the question of how to enter into this fullness, the answer follows from what has been said above. The "gates" through which we can enter the fullness of Christ is the Church. In it, the possibility of prayerful communion with Christ and participation in the sacraments of the Church is revealed to us, where He Himself comes into our lives according to His promise. Also, a fundamental condition for entering into the fullness of Christ is living according to His commandments. But most importantly: since it would be naive to try to force Him into the fullness of communion with us, we must first of all ask this of Him Himself. Many Christians resort, in addition to this, to the prayers of other members of the Church, first and foremost the Most Pure Mother of God.
1
1:22 And he hath given him to be head over all things to the church - An head both of guidance and government, and likewise of life and influence, to the whole and every member of it. All these stand in the nearest union with him, and have as continual and effectual a communication of activity, growth, and strength from him, as the natural body from its head.
1:23 The fulness of him that filleth all in all - It is hard to say in what sense this can be spoken of the church; but the sense is easy and natural, if we refer it to Christ, who is the fulness of the Father.
2
2:1 And he hath quickened you - In the nineteenth and twentieth verses of the preceding chapter, St. Paul spoke of God's working in them by the same almighty power whereby he raised Christ from the dead. On the mention of this he, in the fulness of his heart, runs into a flow of thought concerning the glory of Christ's exaltation in the three following verses.He here resumes the thread of his discourse. Who were dead - Not only diseased, but dead; absolutely void of all spiritual life; and as incapable of quickening yourselves, as persons literally dead. In trespasses and sins - Sins seem to be spoken chiefly of the gentiles, who knew not God; trespasses, of the Jews, who had his law, and yet regarded it not, Eph 2:5. The latter herein obeyed the flesh; the former, the princeof the power of the air.
2:2 According to the course of this world - The word translated course properly means a long series of times, wherein one corrupt age follows another. According to the prince of the power of the air - The effect of which power all may perceive, though all do not understand the cause of it: a power unspeakably penetrating and widely diffused; but yet, as to its baneful influences, beneath the orb of believers. The evil spirits are united under one head, the seat of whose dominion is in the air. Here he sometimes raises storms, sometimes makes visionary representations, and is continually roving to and fro.The spirit that now worketh - With mighty power; and so he did, and doth in all ages. In the sons of disobedience - In all who do not believe and obey the gospel.
2:3 Among whom we - Jews. Also, formerly had our conversation: doing the will of the flesh - In gross, brutal sins. And of the mind - By spiritual, diabolical wickedness. In the former clause, flesh denotes the whole evil nature; in the latter, the body opposed to the soul.And were by nature - That is, in our natural state. Children of wrath - Having the wrath of God abiding on us, even as the gentiles. This expression, by nature, occurs also, Gal 4:8; Rom 2:14; and thrice in the eleventh chapter. Rom 11:24 Eph 2, but in none of these places does it signify, by custom, or practice, or customary practice, as a latewriter affirms. Nor can it mean so here For this would make the apostle guilty of gross tautology, their customary sinning having been expressed already, in the former part of the verse. But all these passages agree in expressing what belongs to the nature of the persons spoken of.