Geshe Kelsang Gyatso explains what wisdom is. He continues to explain the principle object of meditation should be on emptiness (more on that later).
An object of meditation is something we focus on while meditating. Gyatso also goes on to explain the meaning of karma and what karma is, how it is accumulated and explains that it takes many life times for us to accumulate karma. In this life time, we wish to have good karma so it can be said that in our other lives we would want good karma as well.
If we want something right now, it can be said that we will also want that same thing in the future, considering that our want is born of necessity and free from desire and passion.
Gyatso also goes on to illuminate the way that passion leads to anger. And contemplating beautiful things and concentrating our attention on beauty is a way for us to arrive at a calm, peaceful mind.
All beings want to be happy, in fact, i do not know anybody nor have i met anybody who does not want to be happy. This is not a matter of my belief but rather a matter of experience.
Can you say you've ever met anybody who didn't want to be happy?
Geshe Kelsang Gyatso - What is wisdom?
For an explanation on the Heart Sutra, via wikipedia, click HERE.
For an excerpt of the Heart Sutra, and a bit of elaboration on the Buddhist notion of emptiness, click HERE.
For a Free Download of the Heart Sutra, translated by Thich Nhat Hanh, via Plum Village, click HERE.