"we are similar to cacti"
Protecting ourselves is absolutely imperative. Too often are acts of self-preservation perceived as selfish. To ensure our well being, we must employ a certain amount of selfishness. Being discerning and conscious of what we allow inside our defenses is required to maintain peace, balance, and inner stability. Reward those who are deserving with the garden of your unfiltered heart. But keep that love pure by closely guarding the soil in which it grows.