The story of Anne of Green Gables has a strong emphasis on friendship, especially in Anne's younger days. She calls her friends "kindred spirits". In a later book, Anne meets an older woman who uses the term, "race that knows Joseph". That thought always intrigued me and several years after reading that for the first time, I came across the biblical reference where she got the phrase. Exodus 1:8 gives the moment in time that Israel ceased its period of comfort in Egypt, while under Joseph's rule with the Pharaoh. "Now there arose up a new king over Egypt, which knew not Joseph." So, the reverse being that those who were believers in God, who followed Him, were of the group that "know Joseph".
All that to say this -- One of the most amazing earthly gifts that God has given us is fellowship with other believers. What joy they bring with their "kindred spirits" -- we're one in the body of Christ! Our fellowship with believers at its best encourages us, strengthens us, and shows love to us. Of course, it's the Holy Spirit living within us as believers that gives us the ability to do all of those things. When we accept Christ as the living Savior of our lives, the Holy Spirit comes to dwell within our hearts, and we begin to show fruit of that -- love, joy, peace, patience, gentleness, goodness, faith, meekness, and self-control. What better qualities could you ask for in a friend?