The fullness that the world gives us is always accompanied by emptiness, we can see how someone who considers himself successful in the world often has emptiness, for example we can see someone who has reached the "fullness" of his professional career, but it has cost his family.

Another example is found in athletes, those who have won many tournaments, fame and who are well known but feel empty inside, this is because the "fullness" that the world gives is not true Fullness.

Ephesians 3: 17-19 King James Version (KJV)
17 so that Christ may dwell in your hearts by faith, so that, rooted and grounded in love, 18 you may be fully capable of understanding with all the saints what is the breadth, the length, the depth and the height, 19 and of know the love of Christ, which exceeds all knowledge, so that you may be filled with all the fullness of God.

This scripture tells us that by knowing the love of Jesus we will be filled with all the Fullness of God. As we saw before, we will be filled with the wholeness and integrity of God, in addition to being totally complete.

The fullness is reflected from the inside out.

Many times we think that the fullness of people is seen in their external successes that they have achieved, but the reality when we see inside their souls we realize how empty they are, these emptiness are reflected in vices, anxieties, they are restless without power have peace, are dissatisfied, etc.

The fullness of God fills our soul, body and spirit, and in due course it is reflected outwards in the form of healing, freedom, prosperity, wisdom, etc.