Vaishravana had performed austerities for a thousand years, in reward of which Brahma gave him immortality and made him god of wealth, guardian of all the treasures of the earth, which he was to give out to whom they were destined. His abode was said to be on Mount Kailas; but when Brahma appointed him god of riches, he gave him Lanka (Ceylon) as his capital, and presented him, as recorded in the Mahabharata, the car pushpaka, which was of immense size and moved at the owners will at the marvellous speed. But later on he was forced to moved to Mount Kailas by his brother Ravana who had captured the throne of Lanka. Ravana also took pushpaka from him.
Kubera is also worshipped by the Buddhists. He is considered as one of the Lokapalas, guardian of Mount Sumeru, as well as one of the Regents of the four cardinal directions. As a Regent of the North he is called Vaishravana and his adobe is Alka in the Himalayas, abounding in wealth and magnificence, where he is attended by Yakshas and Kinnaras.
The Buddhist texts, the Divyavadana and the Lalitavistara provide information pertaining to the legend and iconography of Vaishravana. In Tibet, he has been one of the primary protectors of the Gelupa sect since the fourteenth century A.D. There is a special ceremony in Tibet for imploring Kubera for riches, which is called Yan-Yung, and he plays an important part in Tantra, sorcery and exorcism. In Northern Buddhism he has two main aspects that of a deity of wealth and that of a warrior protector. In the present manifestation he has been shown as the god of wealth. Though Vaishravana holds many attributes, e.g. a sword, a banner, lemon and flat vessel etc., but his most common attribute or insignia is mongoose (nakula), often vomiting jewels, and in all descriptions Vaishravana is said to be fat and pot-bellied in appearance. His female counterpart is Vasudhara, the goddess of wealth and prosperity.
Here he is seated in an easy posture on a lotus throne. His right foot is slightly pendent and supported by a conch-shell. His left hand holds a jewel-spitting mongoose. There is a precious jewel offering in front of him. He has open eyes, frowning eyebrows and an upturned lower lip. His beard has been designed in the shape of curls. He is wearing a five-jewelled crown, and various ornaments - earrings, necklaces, armlets, bracelets, waist-bands and anklets. There is a snake around his body and he is adorned with flowing scarves.