Cloudscape

Give negative feelings as much love as positive emotions, but shun negative thoughts. In fact, perhaps negative feelings would not be called negative were it not for negative thoughts that judge them thus.

When feeling an emotion such as anger and despair, observe them as though it were a leak of energy and no more than this — a leak that needs to be sealed — thereby encouraging you to do so, as well as to take an objective distance from the emotion.

Cherish positive emotions as love and hope, and they will grow. Pay no further attention to negative emotions as hate and despair, and they will dwindle. With positive emotions, I mean to refer to emotions that further growth, and with negative emotions, to emotions that destroy; in this sense, positive emotions need not always be pleasant, and negative emotions not always painful.
Remember to recognize negative emotions rather than repress them, but pay no further attention to them, for whatever thought one will pay attention to will grow.
Some negative emotions may sometimes partly feel positive. Despair often comes with a resignation which takes away our fears, while anger takes away our fears through defensiveness; despair, then, is an extreme of yin, while anger is an extreme of yang. While both these extremes should be avoided, the the yin and yang of these extremes can be used; thus, rather than decreasing the yin or yang of either extremes, perhaps we should complement them with their opposite.
We sometimes yield to them because, ironically, they give us a feeling of safety; if that happens to us, we should not repress the negative emotion but focus on its positive aspect of safety. Pain can bring us into a state of detachment; if we can preserve this state of detachment even when our pains have not been in vain.
Some people believe that only through suffering one can grow; I would say that suffering is, rather, a side effect of growth: suffering is resistance to growth. Hardship makes one stronger only if one learns to love what life brings you even in your hardship, even if that means to love your hardship in itself. One can grow only through love; but love can bring suffering along with it as it causes you to grow; remember therefore that love does not need to be pleasurable, and can just as well be painful. It is not an feeling in itself and can manifest in many kinds of feelings; but unless it is incomplete, love always brings us to greater beauty.

The only thing one can do about negative emotions is to one way or another pay no more attention to them; that can only be done by turning one's attention to something else, as one's thoughts will otherwise always stray back to one's negative emotions. The attention one gives to an emotion is the only thing that keeps it alive.