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.

To learn Buddhism is to learn wisdom and compassion. To attain Buddhahood means the manifestation of the inherent wisdom and compassion of Buddha-nature after all the obscurations have been purified. That is all it means.

- Quote from The Right View, "Buddhism—the Definition"

The more it is dedicated, the more it grows; the more it is kept for oneself, the more likely it decreases. This aspect of the root of virtue is just the opposite of that of worldly things.

Hence, it is not just in times of suffering, but also in times of happiness, that we need the Dharma. With the wisdom and the force of the teachings to face happiness, to share our good fortune with others, then happiness will not obstruct our practice.

Without the Buddhist teachings and practice, most people are still able to endure suffering; this is because they hold on to hope, even if it is very slight. Faced with good fortune, however, it is difficult for them to remain composed; with money, power, and status, they become megalomaniacal and self-important. Unable to return to their simple life before, and even less willing to listen, reflect, and practice the teachings, they indulge in material pleasures and gradually deplete their blessings.

- Quote from Are You Ready For Happiness? Don't Let the Paper Tiger Scare You Off, "How to Face Happiness"

The Sarvastivada School and the Yogacara (Mind-Only) School hold many different viewpoints on the interpretation of causality, but the ones elucidated by the Mind-Only School are the more comprehensive within the context of the Relative Truth. The Yogacara School thinks that everyone has a mind continuum from beginningless time until the attainment of enlightenment. This mind continuum sometimes has the five consciousnesses of eyes, ears, nose, tongue and body, but sometimes not. No matter how it manifests itself, a permanent existence called the alaya consciousness is present at all times. Whenever karma is committed, a karmic seed will be planted in the alaya consciousness.

Being “mindful” means that not only the body does virtuous action but the mind also engenders proper aspiration, visualizes carefully and dedicates the merit.

Take as an example, when we lose a person or an object that we are attached to, and feel unbearable pain, we should meditate and reflect: can I get back what I lost? If so, there is nothing to worry or feel sad about, I just need to get it back; if I can never get back what I lost, I can only face and accept the reality.

- Quote from Are You Ready For Happiness? Don't Let the Paper Tiger Scare You Off, "How to Face Suffering"

As said before, if the purpose of doing something was to satisfy worldly pursuits such as health and longevity, it would be deemed an unwholesome motivation. All the activities done on this premise, whether they are meditation or reciting sutras, are considered just mundane practices that do not lead to enlightenment.

The minimum goal we should set for ourselves of this life is to enter the bodhisattva’s path of accumulation, which is the first step, a must, to start the journey of dharma practice.