In Social Psychology it simply means responding to a positive action with another positive action. In other words rewarding kind actions. Other examples include; The Golden Rule, Tit for Tat and Backscratching.
Most importantly reciprocity is a spiritual law, therefore a cross cutting theme in the leaves of the Holy Writ. So we see calls like; “Return to me, and I will return to you”, “You shall find me when you seek me with your whole heart”, “The LORD is with you when you are with him. If you seek him, he will be found by you, but if you forsake him, he will forsake you” – to list a few examples.
When The Rabbi was asked by one of the theologians of his era which one of the commandments was most important, his response was;
The first in importance is, ‘Listen, Israel: The Lord your God is one; so love the Lord God with all your passion and prayer and intelligence and energy.’ And here is the second: ‘Love others as well as you love yourself.’ There is no other commandment that ranks with these
So friends The Golden Rule is worth every ounce in gold.