Bhujangasana(boo-jang-GAHS-suh-nuh) increases spinal flexibility and strength and brings a rich blood supply to the spine, which in turn rejuvenates the spinal nerves. It also activates, massages and tones back muscles. This pose helps a slipped disc and minor lower back pain and injury. It also fully opens the chest, giving strength and elasticity to the lungs, which helps with asthma and respiratory problems. Bhujangasana massages the abdominal organs, especially the kidneys and liver, stimulates the adrenal glands, and is good for dyspepsia and vata diseases. It also brings more blood to the pelvic area, keeping it healthy; while relieving menstrual problems and problems with the uterus and ovaries.
Bhujangasana opens up the chest cavity and shoulders, releasing and removing the heaviness of the body and mind. This asana, like Urdhva Mukha Svanasana, removes dullness in the mind, preparing the body and the mind to be strong in overcoming challenges in life. There is a very beautiful story in the Ramayana where Lord Hanuman tears open his chest to show his devotion to Lord Ram and Mother Sita: After Lord Rama came back from his 14 years in the jungle and winning over Ravana, he was coronated as Ayodhya Naresh, the King of Ayodhya. In the celebration, precious ornaments and gifts were distributed to everyone. Hanuman was also gifted a beautiful necklace of diamonds by Mother Sita.
Hanuman took the necklace, carefully examined each and every diamond, pulled them apart, and threw them away. Most were surprised by his behavior.