"Individuals primarily seek social relationships to fulfill their need for belonging (Baumeister and Leary 1995; Lee and Robbins 1998). Human beings are social animals and because ‘no man (woman) is an island’ (Donne 1975), people are naturally inclined to make social connections to satisfy their need for belonging (Maslow 1954; Brewer 2005). Baumeister and Leary (1995) described belonging, the need to form and maintain interpersonal bonds, as one of the fundamental motivations behind human behavior. Most research indicates a common definition of what loneliness is – it is an aversive psychological state due to a person’s perception of lacking satisfactory social relationships. Quantity of social relationship is a contributing factor to lonely feeling: people will feel ‘lonely’ when there are too few people around them (Russell, Peplau and Cutrona 1980), as opposed to the ‘crowded’ feeling when individuals are surrounded by too many people. However, quality may be more important than quantity at times. As the sufficient number of relationships varies among individuals (Jones 1982), loneliness has also been understood as the perception that one’s existing interpersonal relationships do not meet one’s expectations (Weiss 1973; Gordon 1976; Peplau and Caldwell 1978; 4266 L.W. Lam and D.C. Lau Downloaded by [University of Macau Library] at 00:54 22 September 2012 Newcomb 1990; Green, Richardson, Lago and Schatten-Jones 2001). Other scholars describe loneliness as painful feelings and emotional distress due to insufficient or unsatisfactory social connections or relationships (Rook 1984; Cacioppo et al. 2006; Cacioppo and Patrick 2008; Rotenberg et al. 2010)."