We need others. We need others to love and we need to be loved by them. There is no doubt that without it, we too, like the infant left alone, would cease to grow, cease to develop, choose madness and even death.
When we care less about our feelings, our rights, our happiness, our security, etc., and begin to concern ourselves with the feelings, rights, happiness, and security of others, we will have found the true power of love.