In Buddhist meditation, you do not turn yourself into a battlefield, with good fighting against evil. Both sides belong to you, the good and the evil. Evil can be transformed into good, and vice versa. They are completely organic things.
If you look deeply at a flower, at its freshness and its beauty, you will see that there is also compost in it, made of garbage.
The same thing is true of your happiness and your sorrow. Sorrow, fear, and depression are all a kind of garbage. These bits of garbage are part of real life, and we must look deeply into their nature. You can practice in order to turn these bits of garbage into flowers. It is not only your love that is organic; your hate is, too. So you should not throw anything out. All you have to do is learn how to transform your garbage into flowers.
From You Are Here by Thich Nhat Hanh