How literally can someone "know how you feel"? Could anyone ever know exactly what someone else is feeling? The above is a summary of Emanuel Swedenborg's reports, based on his out-of-body experiences, that feelings, rather than being isolated, internal phenomena, can actually be transferrable and communal.
The ideas here were pulled from his book Secrets of Heaven, vol. 2, #1392. You can download that book for free here: http://www.swedenborg.com/archive/products/secrets-of-heaven-vol-2-new-century-edition/
You can also see his "Spiritual Diary" #395.
No, I can't be sure that what he writes is true--I'm just giving you the material to look over and form your own conclusions about.