“If a mother leaves her small child in his bed or cradle and goes away to attend to some family duties, the child immediately understands that his mother has gone away, and therefore he cries. But as soon as the mother returns and cares for the child, the child laughs and becomes jubilant. Similarly, Prahlada Maharaja, being always absorbed in thoughts of Krishna, sometimes felt separation, thinking, ‘Where is Krishna?’” (Shrila Prabhupada, Shrimad Bhagavatam, 7.4.39 Purport)