In the teachings of Swami Kripalvananda, seva or selfless service plays a crucial role in the practice of Kriya Yoga. Seva is seen as an integral part of the spiritual journey, as it helps individuals to cultivate virtues such as compassion, humility, and detachment.

According to Swami Kripalvananda, the ultimate goal of Kriya Yoga is not just personal enlightenment, but also the upliftment of humanity as a whole. And seva is seen as a means to achieve this goal. Through selfless service, individuals can contribute to the betterment of society, and in turn, purify their own minds and hearts.

Swami Kripalvananda emphasized that seva should be done without any expectations of recognition or reward. It should be done with a sense of detachment, without getting attached to the results of one's actions. This helps individuals to overcome the ego and cultivate a sense of selflessness.

In Kriya Yoga, seva is not limited to just physical acts of service. It also includes mental and emotional service, such as offering prayers and positive intentions for the well-being of others. This type of seva helps to cultivate a sense of interconnectedness and oneness with others, breaking down the barriers of individuality and separation.

Moreover, Swami Kripalvananda believed that seva should be done with an attitude of love and compassion. It is not just about fulfilling a duty or obligation, but about genuinely caring for the well-being of others. This helps to develop a heart-centered approach to life, and ultimately leads to inner peace and contentment.

In addition, seva is also seen as a way to purify the mind and prepare it for the practice of Kriya Yoga. By serving others, individuals can learn to control their desires and develop a sense of detachment, which is essential for spiritual growth.

In conclusion, the role of seva in Kriya Yoga, as taught by Swami Kripalvananda, is to help individuals cultivate selflessness, compassion, and detachment. It is a means to contribute to the betterment of society and purify one's own mind and heart. By incorporating seva into their spiritual practice, individuals can not only achieve personal enlightenment but also contribute to the upliftment of humanity.