Thanks for the reply Iconoclassic.
Your daughters reply to your question " Why do you say God exists?" Was a very wise answer from a 9 year old, and it does suggest that seeds are born with a purpose. But looking deeper, in to your question and deeper meaning requires deeper thinking, the seeds could still have come about by accident.
so would you agree :-
A) That if everything has deeper meaning, deeper meaning must also have deeper meaning too. Right?
Or :-
B) Would you say that deeper meaning has only what needs deeper meaning? If so then deeper meaning itself doesn't need it and my first question is wrong. Right?
So my answer would be that the puzzle of deeper meaning will never be solved. Hence my O.P " Love is like God" neither can be proven, only to the believer can they exist.
The Rebel.