Samadhi (or samadhana, or concentration, or meditation) of the mind is the act of fixing the vital breath and thought on one of the six circles in which the vital breath circulates within the body, and thus concentrating the mind on the transcendent pastimes of the Supreme Lord.

Through these practices, or by any other recognized path, one must achieve control over the unbridled mind, which is defiled by matter and always yields to the lure of material pleasure, and thus establish oneself in the thought of the Sovereign Lord.

After mastering the mind and the sitting postures, one must arrange a seat in a secluded and sanctified place, sit on it in an easy posture, keep the body erect, and practice control of breathing.

The spiritualist should free the passage of the vital breath by breathing in the following manner: he should first inhale very deeply, then hold his breath, and finally exhale. Or, by reversing the process, he can first exhale, then hold the air outside, and finally inhale. This practice is intended to acquire stability of mind and to free it from all external disturbances.

Spiritualists who practice these breathing exercises soon find themselves freed from all mental disturbances, just as gold is freed from all impurities when it is immersed in fire and fanned.

By the practice of pranayama (practice of breathing exercises), one can eliminate the defilement of one's physiological condition, and by concentration of the mind, one can free oneself from all sinful acts. By the discipline of the senses, one can escape contact with matter, and by meditation on God, the Sovereign Person, one can free oneself from the hold of the three gunas, the source of material attachment.

When the mind is thus purified by this practice of yoga, one should then focus on the tip of the nose, with half-closed eyes, and contemplate the Form of the Supreme Lord.

The Supreme Lord shows a smiling, lotus-like face, with eyes of reddish hues like the interior of a lotus, and a complexion dark like the petals of the blue lotus. In three of His hands He carries a conch, a discus and a mace.

A silken cloth of the bright yellow of the lotus filaments is girded about His loins. On His chest He wears the Srivatsa, a tuft of white hair, and the resplendent Kaustubha jewel hangs around His neck.

He also wears around His neck a garland of beautiful wild flowers, around which buzzes a swarm of bees intoxicated by its sweet fragrance. He also adorns Him with a beautiful pearl necklace, a crown and pairs of armlets, bracelets and ankle rings.