In general, any virtuous object can be used as an object of meditation. If we discover that by acquainting our mind with a particular object our mind becomes more peaceful and virtuous, this indicates that for us that object is virtuous. If the opposite happens, for us it is a non-virtuous object. Many objects are neutral and have no particular positive or negative effect on our mind.
There are many different virtuous objects of meditation. By relying upon a qualified Spiritual Guide we open the door to practising Dharma. Through the blessings of our Spiritual Guide we generate faith and confidence in our practice, and easily attain all the realizations of the stages of the path. For these reasons we need to meditate on relying upon a Spiritual Guide. We need to meditate on our precious human life to realize that we now have a special opportunity to practise Dharma. If we appreciate the great potential of this life we shall not waste it by engaging in meaningless activities.
We need to meditate on death and impermanence to overcome procrastination, and to ensure that our Dharma practice is pure by overcoming our preoccupation with worldly concerns. If we practise Dharma purely it is not very difficult to attain realizations. By meditating on the danger of lower rebirth, taking refuge sincerely, and avoiding non-virtue and practising virtue, we protect ourself from taking lower rebirth and ensure that life after life we shall obtain a precious human rebirth endowed with all the conditions conducive to the practice of Dharma.
We need to meditate on the sufferings of humans and gods so that we develop a spontaneous wish to attain permanent liberation, or nirvana. This wish, known as `renunciation', strongly encourages us to complete the practice of...