When Kṛṣṇa was absent from Vṛndāvana and was staying in Mathurā, Śrīmatī Rādhārāṇī sent news to Him that His mother, the Queen of Vraja, was feeling such separation from Him that there was foam coming from her mouth, like the foam on the shore of the ocean. And sometimes she was raising her arms like the waves of the ocean, and because of her intense feelings of separation, she was rolling on the ground and creating a tumultuous roaring sound. And sometimes she was remaining completely silent, like a calm sea. These symptoms of separation from Kṛṣṇa are called apasmāra, or forgetfulness. One completely forgets his position when he manifests these symptoms in ecstatic love.