Gosh, who would have ever thought that adding the "C.S. Lewis quote of the day" to my Google homepage would wind up being so thought-provoking?
"Affection is responsible for nine-tenths of whatever solid and durable happiness there is in our lives."
Profound on several levels. I was having a conversation with a friend today and she is one who LOVES physical touch/affection. I have always considered myself to be on the opposite end of that spectrum - I don't like to be touched. As we discussed this, she said something really hit me; she never feels quite as safe and happy and at rest and at home as when she is being held by another person. I suppose this may be true of all people (after all, there is that whole study about the chimps who gravitate toward the soft cuddle mom-robot with no food over the stark cold mom-robot who provides food... as well as other studies).
What I realized was that she and I are actually very similar in this way - I do get a safe/happy/restful feeling from physical touch - but only with a select few trusted individuals. Our differences come in frequency and variety.
This is not to say that physical touch is the only form of affection, but it is the one that comes to mind most readily.
Anyhow, that was my thought-of-the-day.