Evelyn Underhill often spoke of “the soul’s ground or apex, that deep core of our being where God dwells and speaks”. She referred to “The inner and eternal Me – spirit, the metaphysical self, that most hidden and intimate seat of our being, where already we live in a measure eternal life; the height or depth at which we taste God, the real seat of the religious instinct” [“God and Spirit”, 1930).
Buddhists explore such territory, and everyone (Evelyn claims) has some sense of their inner being. Do you?