When you see two people holding hands, there is a good chance that they are feeling some sort of attachment towards each other. It can mean love, affection and protection.
Holding hands is in fact a universal sign of intimate affection, just like kissing, massages, cuddling, and caressing.
Holding hands may be a small thing, but it holds a lot of meaning as a gesture in a relationship. Holding on to your lover's hand shows that you are thinking about them, that you are there for them and willing to offer them the comfort and security that they need from you.
According to one study on 16 happily married couples, holding hands with someone you love can help to reduce stress.
In the study, the wives were told they were going to receive shocks, and even were able to watch when the shocks were coming.
It turns out that they felt more at ease when they were holding their husband's hands as opposed to facing the shocks alone.
In addition, when holding a stranger's hand, they still experienced more calmness when they were not holding anyone's hand. [Source: http://pss.sagepub.com/content/17/12/1032.abstract]
Nothing in this world compares to the comfort and security of having someone just hold your hand.
It has been said by psychologists that couples that usually interlock all of their fingers while holding hands tend to have a deeper connection.
"I want to hold your hands and be with you until my last day." ~ Gabor Timis