The causes of loneliness vary , and include social, psychological , emotional, A person who feels lonely is lonely . who experience solitude feels lonely even when surrounded by other peopleIsolation is  simply the state of being isolated from others , and not everyone Loneliness overlaps with solitude, but is nonetheless  indepent of it .It is often associated with an unwanted lack of contact  and intimacy. that motivates individuals to seek social connection . Lonliness is also desicribed as psycological pain , a psychological mecanismLoneliness is a painful emotional response to perceived isolation .cubist sculpture. (Iranian , Persian, Hindi) . One of the most famous indian drawings is theThe most famous language that indicates unity is the persian language.