Kṛṣṇa is actually present everywhere. The Vaiṣṇava, therefore, marks his body with temples of Viṣṇu: he first marks a tilaka temple on the abdomen, then on the chest, then between the collarbones, then on the forehead, and gradually he marks the top of the head, the brahma-randhra. The thirteen temples of tilaka marked on the body of a Vaiṣṇava are known as follows: On the forehead is the temple of Lord Keśava, on the belly is the temple of Lord Nārāyaṇa, on the chest is the temple of Lord Mādhava, and on the throat, between the two collarbones, is the temple of Lord Govinda. On the right side of the waist is the temple of Lord Viṣṇu, on the right arm the temple of Lord Madhusūdana, and on the right side of the collarbone the temple of Lord Trivikrama. Similarly, on the left side of the waist is the temple of Lord Vāmanadeva, on the left arm the temple of Śrīdhara, on the left side of the collarbone the temple of Hṛṣīkeśa, on the upper back the temple called Padmanābha, and on the lower back the temple called Dāmodara. On the top of the head is the temple called Vāsudeva. This is the process of meditation on the Lord's situation in the different parts of the body, but for those who are not Vaiṣṇavas, great sages recommend meditation on the bodily concept of life—meditation on the intestines, on the heart, on the throat, on the eyebrows, on the forehead and then on the top of the head. Some of the sages in the disciplic succession from the great saint Aruṇa meditate on the heart, because the Supersoul stays within the heart along with the living entity. This is confirmed in the Bhagavad-gītā, Fifteenth Chapter, wherein the Lord states, “I am situated in everyone's heart.”
As part of devotional service, Vaiṣṇavas protect the body for the service of the Lord, but those who are gross materialists accept the body as the self. They worship the body by the yogic process of meditation on the different bodily parts, such as maṇipūraka, dahara and hṛdaya, gradually rising to the brahma-randhra, on the top of the head. The first-class yogī who has attained perfection in the practice of the yoga system ultimately passes through the brahma-randhra to any one of the planets in either the material or spiritual worlds. How a yogī can transfer himself to another planet is vividly described in the Second Canto of Śrīmad-Bhāgavatam.