Lord Guru is planet Jupiter. He is also known as Brihaspati and Devagura. Lord Guru is the preceptor of Indra (king of the gods), and is the most auspicious of planets. According to the Shiva Purana, Lord Guru is the son of sage Angirasa and Surupa. Lord Guru blesses his devotees with strength, knowledge, longevity, and progeny. He cures ailments of the stomach and wards off sins. Lord Guru is also benevolent, and a dispenser of justice. His metal is gold, and his gem is yellow topaz/yellow sapphire. He is worshipped especially on Thursdays. Lord Guru is the guardian of the north-east direction.