Sheba expresses her belief that married life has a natural rhythm characterized by fluctuating periods of pleasure and intimacy. This ebb and flow varies from couple to couple, with some experiencing weekly cycles and others following lunar patterns. Despite these differences, all couples awareness of these natural fluctuations in their relationship.
According to her, the most harmonious relationships are those where these cycles complement each other; when one partner feels weary, the other feels passionate, ensuring there is never a complete lull in their connection. This interplay helps maintain balance and vitality within the marriage, according to Heller's observations in her book.