The quote reflects on the deep sense of intimacy experienced in sleep, suggesting that sharing dreams with another person fosters a profound connection. The author notes that even limited experiences with other partners lead to an awareness of how trust is inherently tied to the act of sleeping next to someone. It's portrayed as a significant emotional bond that transcends physical intimacy.

The reference to older, more primitive times emphasizes that sleeping in someone's presence was once an important act of trust. In this light, simple sleep is seen as a powerful means of closeness, potentially even more significant than physical relationships, highlighting the emotional and psychological aspects of human connection.