The excerpt reflects a profound sense of isolation and struggle that the author, Sylvia Plath, experiences in the face of overwhelming opposition. The phrase suggests that the speaker feels misunderstood and outnumbered, contributing to a deep sense of defeat. The sentiment implies that despite the clarity of their own thoughts or feelings, there remains an overarching awareness among others regarding their struggles and challenges.

Plath's journaling reveals a complex interplay between self-perception and external judgment. The acknowledgment that "they all know" hints at a societal awareness of her internal battles, yet it simultaneously brings forth feelings of vulnerability and defeat. This tension captures the essence of her emotional landscape, portraying the difficulties of navigating personal turmoil under the weight of collective scrutiny.