The fish and the egg represent a basic necessity - food. And a child needs to have food given to her. We wouldn't expect a child to earn food. Further Jesus speaks of his Father as giving the Holy Spirit to those who ask. The presence of the Holy Spirit in our lives does not have to be earned and is as much a necessity as food.
For reflection: How much Holy Spirit do I have in my life? How much do I need?
Let us pray. Father, giver of all good gifts, I ask today for more of the presence of your Holy Spirit in my life. I have a great need for the strengthening, the power and the love of the Holy Spirit.