The following link is to a 5 minute video of a number of experts describing what they think the soul is. There is a transcription below the video. I've list a few examples but you have to go to the article for the whole list. Do any of them resonate with you?
What Is The Soul?
Oprah: What is the soul?
Iyanla Vanzant: The soul, I believe, is the fingerprint of God that becomes a physical body. I believe that. It's the fingerprint... It's unique to everybody.
Deepak Chopra: The soul is the core of your being. It is eternal. It doesn't exist in space/time. It's a field of infinite possibilities, infinite creativity. It's your internal reference point with which you should always be in touch.
DeVon Franklin: The soul is the spirit. It is the connecting line to God. I believe the soul is where the Holy Spirit resides. I believe that it is literally, you know, when you pick up the phone and then you have your 4G network? The soul is the 4G network right to heaven to me.
Sarah Ban Breathnach: The soul is the spiritual essence of who we really are.
Daniel Pink: The soul is, I think, our capacity to see that our lives are about something more than simply the day to day, and that we're here for a purpose. It could be connected to religion or not, but that there is a purpose of your being here.
Jean Houston: I believe that the soul is the essence of who and what we are. I personally believe that it transcends our leaving this mortal coil. And I think it it comes with codes, and possibilities, and the next layers of who and what we may yet be. It is often a pain in the neck because it says, "Wake up. It's time to wake up. Don't go to sleep." I think it is also the lure of our becoming. That's what I think the soul is.