It's easy for us to feel separate from other people and from other forms of life, especially if we don't have a reliable connection to our own inner world. Without insight into our internal cycles of pleasure and pain, desires and fears, there is a strong sense of being removed, apart or disconnected. When we do have an understanding of our inner lives, it provides an intuitive opening, even without words, to the ties that exist between ourselves and others.
Sharon Salzberg (2012). “The Force of Kindness: Change Your Life with Love & Compassion”, p.32, Sounds True