Ephesians 3:17-19

so that Christ may dwell in your hearts through faith. And I pray that you, being rooted and established in love, may have power, together with all the saints, to grasp how wide and long and high and deep is the love of Christ,

(v17-18, NIV)

There is a God given ability to grasp the enormity of the love of Christ. Sometimes we try to describe God as big, or sometimes we try to describe different qualities of Him as big. However, the word "big" just isn't enough to describe the size. With reference to the love of Christ, it's not just bit, but its size is big in all three dimensions. The love of Christ is wide, long and high. It is difficult to comprehend, but with the strengthening that comes from God and being rooted and grounded in love, we may be able to comprehend this.

and to know this love that surpasses knowledge—that you may be filled to the measure of all the fullness of God.

(v19, NIV)

Not only will we be able to comprehend its size, but we'll be able to know this love. There are different ways in which we come to know things. We can know things the same way we know things in school. In school we know and learn math and it's an intellectual kind of knowing. However, we can also know things with an experiential type of knowing. Here, we will not simply be able to comprehend the love of Christ, and we will not simply know the love of Christ with our knowledge, but we may truly experience his love and thus know his love by our experience. If we try to know his love through knowledge, it is limited because his love surpasses knowledge. Wow, how awesome is the love of Christ.

All this knowing and experiencing and comprehending of Christ's love are Paul's desire for all of us. Through our relation and experience of Christ's love, we will be filled to the measure of all fullness of God. Filling and being filled only comes through the love of Christ. It makes me think of people who try to fill their lives with things other than the love of Christ; it doesn't work. I've heard it explained to me that we all have a God shaped hole inside of us. Since it's a God shaped hole, when we try to fill it with anything else, it doesn't satisfy us because it doesn't fit. The only thing that will satisfy us and fill this hole is God.