Let the friend in me interpret it for the mustard seed in you: I mean that many hope to find in lie what can only be found in Truth. Their condition to follow Jesus is to be "happy" first, and since it'll never be true and enough even when it all happens, they're going to waste their whole time and still they're not going to be ready. Even when things get hard and bad, they still most likely won't look for a Place to grow.
Could you be watering the fool in you day to day?
Your own wisdom can do nothing for you.