Your sphere is Guardian (Person of great Love and Altruism), and your class is Defender (Peaceful, yet Potent).
You are a Warden.
To be a Warden is to be the ultimate Guardian. Whether a physical Guardian or an essential Guardian, is up to you. You may be both. To be a physical Guardian is to be a living, breathing testament to the love you carry for a person, or people, whose lives you will always defend if you possibly can. To be an essential Guardian is to be a living, breathing testament to the security that your wards seek, and will look to you for your always kind, always nurturing support.