Ideally, friendships lead us into deeper communion with each other; those we love mirror the divine reality and so draw us closer to the One they reflect. In our humanness, however, we can forget that the friend is only a reflection of God and instead invest ultimate meaning in the relationship.
People often ask how they can avoid daydreaming when they are trying to meditate. Meditation does not make them daydream, but only makes them more aware of fantasies they have always had. In meditating even for a short time, they hold a mirror up to themselves that clearly reveals the shape of their fantasies.
Walking deep in a forest in late autumn, you may be startled by the loud rustling of your feet among the dry leaves breaking in the stillness. Fantasies disturb meditation in the same way.