The plant in front of it is the famous "seeing the blood-sealing throat tree" - the arrow poison wood, which grows in the tropical rain forest. It is a national third-grade protected plant. The sap contains highly toxic, but it is in contact with human and animal wounds. The poisoned person can be paralyzed by the heart, the blood vessels are closed, the blood is coagulated, and even the suffocation is dead. Therefore, people call it "seeing the blood and sealing the throat", and the poison arrows used by the Yi people in ancient times mostly smeared the sap. It is quite interesting that the highly toxic substances in nature can also be used as medicine. The same is true for arrow poisonous wood. Its sap also has the effect of strengthening heart, vomiting, diarrhea and anesthesia. It can also be used for external treatment of lymph node tuberculosis. The couple of trees that have been lingering for thousands of years have won countless lovers and couples in the same bed. Stacked clouds, ancient trees towering, away from the hustle and bustle of the city, the ear is an ethereal insect song, stop and stop in the rain forest, inadvertently will take a beautiful natural picture. Clear water, clear sky, wash, sea blue, dip in the mountains, lying in a few stone benches, pillows on all sides, accompanied by wind and moon flowers, drinking tea, cooking wine, poetry, not too fast!