If you wish to learn unconditional love, learn it from this earth we walk upon. When you poison her rivers, bomb her deserts or cut down her forests, she still keeps giving and giving to you. She does not withhold the rain and sun and wind thinking you need to be punished for your trespasses against her. She knows that you are indivisible from her. The earth just keeps giving to you without condition, without the need for recognition. That is the proof of her love.