We don't realize that, somewhere within us all, there does exist a supreme self who is eternally at peace.

The line expresses a core spiritual-psychological idea: beneath the mind’s turbulence and the personality’s anxieties there is a deeper, steadier identity—an inner “self” characterized by calm. Gilbert frames this as something we “don’t realize,” suggesting the peace is not absent but obscured by distraction, fear, and habitual self-narration. The quote encourages inward attention and trust that equanimity is an intrinsic human capacity rather than a condition dependent on external circumstances. It also implies a universalism (“within us all”), positioning inner peace as a shared human birthright that can be accessed through practices of reflection, meditation, or contemplative living.