Ever felt lonely? There's a reason for that being a part of our nature. God said of mankind, “Let Us make man in Our image, according to Our likeness." (Gen 1:26) In John 14:11, Jesus said, "Believe Me that I am in the Father and the Father is in Me," showing a part of His image: unity.
Part of God's image is that He has never been alone. He exists together as the Father, the Christ, and the Spirit. Being made in His image, being alone is difficult for us, and as Christians, we need to look for ways to be united with other Christians. We need to seek out other Christians to grow. When we embrace being joined with other Christians, we soothe loneliness and we show ourselves "diligent to preserve the unity of the Spirit." (Eph 4:3)
"For the entire Law is fulfilled in in this one word: "You shall love your neighbor as yourself."—Gal 5:14