From 1 John, we learn that fellowship with God is in:

(more than one can be chosen)

language

love

life

liberty

light

Love, Life and Light.

John was "the disciple whom Jesus loved" - - as described in the Bible. We might say he and Jesus were best friends. John's letters to the church--1, 2 and 3 John--are full of expressions of how God brings us life and light through his love. Some pertinent passages from 1 John would be examples like these: "We proclaim to you the eternal life, which was with the Father and has appeared to us" (1 Jn 1:2). "If we walk in the light, as he is in the light, we have fellowship with one another" (1 Jn 1:7). "Dear friends, let us love one another, for love comes from God. Everyone who loves has been born of God and knows God" (1 Jn 4:7).