Many people are convinced that what they practice must be of supra- mundane nature. How can it not be if they have been practicing the five extraordinary preliminaries? In fact, these five preliminaries are not only supramundane in nature but also part of the Mahayana practices. The key is, notwithstanding, having what kind of perspective when you sit down to practice these preliminaries. Though the possibility of practicing solely for the benefit of this life is slim, it is quite likely to undertake these practices to avoid rebirth in the hell realm. If the motivation is not to seek liberation for the sake of all sentient beings, the practice of the five preliminaries will be considered mundane, not supramundane. 

Despite the fact that we still need to go to work, it is altogether possible that we can cultivate compassion and renunciation at the same time. These endeavors are not contradictory since there are ways for us to turn ordinary activities, which normally are not altruistic, into actions that benefit other beings.

The Four Noble Truths of the Theravada tradition is a part of this wisdom. And complete renunciation entails mastery of the Four Noble Truths.

In order to succeed, we must first begin by cultivating renunciation. Failing that, neither meditation nor mantra chanting can ever be deemed supramundane practice through which ultimate liberation can be attained. This is extremely important!

Thus, we need to remain highly mindful and keep our conduct disciplined when undertaking any kind of practice. Often enough, upon closer examination, we may find that what appears to be altruistic actually only benefits ourselves. This is true in the case of the five preliminary practices as well as mantra chanting, animal liberation, prostration, etc. In short, if the purpose is to attain liberation just for oneself, no matter how sublime a practice is, it can only be deemed a Theravada practice.

It is a conviction of suffering being the nature of samsara to such a degree that one no longer harbors any desire for samsara and wholeheartedly seeks liberation from it. At the same time, one must also cultivate the transcendent wisdom that is implicit in the ultimate liberation.

- Quote from The Right View, "The Three Differences"

If it is for purposes related to spiritual practice, working can be viewed as a kind of supramundane practice. If the money is intended for ill purpose, even before any real action has taken place, evil karma will start being accumulated every day one goes to work. When working is simply a means for living, it results in neither good nor evil karma. So, action may be the same, but karma may not. And the determining factor is nothing but one’s motivation.

It is stated in The Words of My Perfect Teacher that mundane and supramundane practices are essentially contradictory to each other. For this reason, laypeople very rarely have the means or the will to drop all their worldly attachment to pursue a contemplative life. Nevertheless, if one could incorporate bodhicitta into one’s everyday activities, Mahayana practice would not seem so incompatible with the trivial and sometimes inconsequential affairs one has to deal with on a daily basis.

Taking refuge is deemed a prerequisite for anyone who wants to learn Buddhism. However, it has never been forced upon anyone. Only those who want to learn the Buddha’s teachings or take up Buddhist practice must comply.

- Quote from The Right View, "The Three Differences"