Just as the mind is the cause of bondage, it can also be the cause of liberation. The mind is described here as para-avara, para means transcendental, and avara means material. When the mind is engaged in the Lords service (sa vai manah krsna-padaravindayoh), it is called para, transcendental. When the mind is engaged in material sense gratification, it is called avara, or material. At the present moment, in our conditioned state, our mind is fully absorbed in material sense gratification, but it can be purified and brought to its original Krsna consciousness by the process of devotional service. We have often given the example of Ambarisa Maharaja. Sa vai manah krsna-padaravindayor vacamsi vaikuntha-gunanuvarnane. The mind must be controlled in Krsna consciousness. The tongue can be utilized to spread the message of Krsna and glorify the Lord or take prasada, the remnants of food offered to Krsna. Sevonmukhe hi jihvadau: when one utilizes the tongue in the service of the Lord, the other senses can become purified. As stated in the Narada-pancaratra, sarvopadhi-vinirmuktam tat-paratvena nirmalam: [Cc. Madhya 19.170] when the mind and senses are purified, ones total existence is purified, and ones designations are also purified. One no longer considers himself a human being, a demigod, cat, dog, Hindu, Muslim and so forth. When the senses and mind are purified and one is fully engaged in Krsnas service, one can be liberated and return home, back to Godhead.