First a few assumptions:
At the very least, we are of three parts, mind, body, spirit. It’s successfully arguable that mind and body may be of the same part, but it may be usefully to consider them separately.
16 Know ye not that ye are the temple of God, and that the Spirit of God dwelleth in you?
1 Cor 3: 16-17
17 If any man defile the temple of God, him shall God destroy; for the temple of God is holy, which temple ye are
There’s at least two applications here: body at spirit. There is a basic requirement to treat the body as a temple, so the Spirit of God can dwell in you and influence you.
And there is a second requirement that your spirit be in a state where it will not contest with the Spirit of God. So there is a requirement of worship for unity in Spirit as well as body.
I suppose by that same logic, we could extend it to any argument that we may need to make.
So taking it one level further. If we wish to live in unity with the Spirit of God, we would also accept and live according the the scripture:
36 The glory of God is intelligence, or, in other words, light and truth.
DC 93: 36-37
37 Light and truth forsake that evil one.
So if the body is a temple of both my spirit and the Spirit of God, and I ought to treat it as such and I must learn to worship in such a way that my spirit and the Spirit of God are in unity and the glory of God is intelligence, then I—at the very least—must align body, mind, and spirit in such a way that I “forsake the evil one.”
Along these lines, we learn that every blessing is predicated on obedience to eternal laws.
20 There is a law, irrevocably decreed in heaven before the foundations of this world, upon which all blessings are predicated—
DC 130: 20-21
21 And when we obtain any blessing from God, it is by obedience to that law upon which it is predicated.
If so, then there are immutable eternal laws to govern the growth and progression of body, mind, and spirit.
It is always possible that there may be obstacles placed in the way of growth of any—or all—of these means of unifying with God.
Physically, we may be predisposed to diabetes, heart disease, overweight, or others. Mentally we may have a tendency to allow depression, doubt, sloth, or others take our prioritized focus. And spiritually, we may struggle choosing to believe in the unseen, scientifically misunderstood or unproven, or simple pride.
Regardless of predispositions, regardless of the challenges in front of us (which are known by God, by the way), part of learning to align ourselves with God’s will is to do it in every dimension. Body. Mind. Spirit.
And there are probably many others. The goal of this investigation was simply to open the window to more than just that of a spiritual nature.
Will perfection in any of these be reached in mortality? No. But knowing that imperfections may exist in each of these dimensions of spiritual unity means we can invite assistance of the Power of Jesus Christ through His atonement to assist us in progressing in each and every one.