The two ears are situated on the northern side and the southern side. The ear on the southern side is very strong and is always anxious to hear about sense enjoyment. The ear on the northern side, however, is used for taking initiation from the spiritual master and for gaining promotion to the spiritual sky. The right ear, or the ear on the southern side, is called Pitrhu, which indicates that it is used for attaining the higher planetary systems known as Pitrloka, but the left ear, which is known as Devahu, is utilized for hearing about even higher planetary systems, such as Maharloka, Tapoloka and Brahmalokaor yet even higher planets, situated in the spiritual universe, where one becomes more inclined to be permanently situated. This is explained in Bhagavad-gita (9.25):