What doesn't Vera to remember about the sea?

Vera struggles to remember the sea as it evokes a mix of nostalgia and sorrow, possibly tied to a personal loss or significant event. Her memories may be fragmented or overshadowed by pain, making it difficult for her to fully recall its beauty and vastness. The sea represents both a longing for the past and a reminder of what she has lost, leaving her with an emotional disconnect from its essence.