OP's question,
Ephesians 1:22 Language a reference to marriage?
Ephesians 1:22-23 And he put all things under his feet and gave him as head over all things to the church, which is his body, the fullness of him who fills all in all.
There is definitely a parallel between man and woman, where man is the head of the woman and Christ, is the head of the ecclesia which is his body.
This is brought more fully out in Ephesians 5:22-32
The husband is the head of the wife, even as Christ is head of the ecclesia, and He is the Savior of the body. nevertheless, as the ecclesia is subject to Christ, thus are the wives also to their husbands and everything. Husband, be loving your wives, according as Christ, also loves the ecclesia, and gives Himself up for it..
Thus husbands, ought to be loving their own wives as their own bodies. He who is loving his own wife, is loving himself.
.... as Christ also, the ecclesia, seeing that we are members of His body...
Corresponding to this a man will be leaving father and mother, and will be joining to his wife, and the two will be one flesh.
This SECRET is great: yet I am speaking as to Christ, and as to the ecclesia. Ephesians 5:32 (capitalization emphasized)
Both love their body,
Both are one,
Both have a purpose of dominion.
Adam and Eve were considered one and given dominion over the Earth
Christ and His complement,
(which is blessed with every spiritual blessing among the celestials in Christ). has a purpose with Christ to head up all in the Christ-/both that in the heavens, and then in the Earth.
God always give examples of things in the natural realm that are a shadow of things in the celestial realm. Christ will be united to His body, like Eve came out of Adam she too has been hidden in Christ.