Poet ‘Harry Behn’ in his poem writes.“Trees are the kindest thing I know, They do no harm, they simply grow.”These lines show how important trees are in our life. They are the best friends of all living beings. Trees are the greatest blessing of God to man. Trees are man’s best friends. They give food, medicines, rubber, gum etc. Trees provide wood for fuel, furniture and buildings houses. They provide raw material for industries too. Trees help us to keep our environment clean. They take in carbon dioxide and give out oxygen. Trees are factories producing oxygen. Trees brings rains. They keep the temperature down. The roots of the trees prevent soil erosion and preserve the fertility of the soil. Trees give shelter to birds. Trees give everything but demand nothing. But we, people are cutting down trees thoughtlessly. If we cut trees, our existence will be in danger. Fertile land would turn into desert. To save ourselves we must save trees ‘Over best friends.’ Save the trees, they will save us.