Jesus said to him, "You shall love the LORD your God with all your heart, with all your soul, and with all your mind.”
(Matthew 22:37 NKJV)
We were created to be the bride of Christ, and that is why we don’t feel complete without Him. In the deepest part of our heart, we seek to be filled. We find our completion only when we are joined to the One who holds our heart.
Sometimes we seek other means to fill that longing in our hearts - with people, success, money, comfort, and any other multitude of things. But the result is just a temporary satisfaction.
It's when we join the deepest part of us - our hearts, souls and minds to God, that we become complete.
"God is the shaper of your heart. God does not display his work in abstract terms. He prefers the concrete, and this means that at the end of your life one of three things will happen to your heart: it will grow hard, it will be broken, or it will be tender. Nobody escapes." - Ravi Zacharias