In relationships , Teaming has a different effect upon one's Atoms, molecules and excitement than does enmity: Physiology is affected by one's thinking and Spiritual choices at deeper level. Immortality of physiology is possible through Unity oneness with Immortal loving truth essence ( already prevalent in all Sentience spirit energy). Some scientific groups have been propounding the Reality of Immortality ( favorable eternal Loving existence) of spirit, soul and body.
To be in Semblance / alikeness/ similarly/ image / inner Similarly/ similitude / sameness in Intent , thoughts, conscience, inner Atmos, emotions and manifest affection: Companions , irrespective of external differences , think and feel alike . Affection is the factor that enables Companionship. Companionship is eternal : the circuits that are responsible for intrinsic bondings are of eternal indestructible spirit soul energy Realm
Companionship is based upon Affection, intrinsic Qualities of Empathy and Bonding. All animals, birds fowl , fish, squirrel care for their young with Affection: indication that they are Empathetic. Dogs , Hens manifest deep Companionship ( loyalty, concern, understanding, affableness, friendship): Intrinsic Qualities. Some humans are Empathetic.