Loving your neighbor is hard. Loving your enemy is even harder, but that's what Jesus tells us to do. If we can, through the power of The Holy Spirit, love our enemies, then we will have riches greater than gold sweeter than honey.
How can something grow without being connected to a source? Jesus references getting rid of the dead growth and pruning the good growth to be more fruitful. It's a long process that takes dedication and time.