Take the example of offering butter lamp to the Three Jewels. Given the same object of offering, act of offering and person who offers, the practice will be deemed mundane when renunciation is not generated and the purpose of the offering is to obtain worldly benefits like health, longevity, job promotion, wealth and so on, or a favorable rebirth. Conversely, offering lamp out of true renunciation and to seek liberation from samsara will be considered a supramundane practice. Therefore, the gauge for distinguishing the mundane from the supramundane is no other than whether one has renounced worldly pursuits or not.

The Great Perfection itself is deemed supramundane, but our motivation for practicing it or listening to its teachings could turn it into a mundane practice instead. If our motivation were to gain benefits in this or next life, the teaching of the Great Perfection would cease to be supramundane upon entering our mindstream; it would not even be a Mahayana practice. What would it be then? It would just be a mundane practice, or, a practice of mundane Great Perfection.

~Depicted from THE RIGHT VIEW - The Three Differences