Srila Prabhupada Lila-Smarana-Mangala-Stotram & Purport
Let us always remember our Divine Master, His Divine Grace, as an eternal servant and resident of the eternal pastimes of Sri Sri Radha-Govinda.
How is it possible that six mundane children could enter the womb of Devaki, who is the personification of pure goodness?
Maximum happiness is of course the goal of life. But people are seen to strive after different objects for the same.