Self knowledge is wisdom. Parental knowledge is gratitude.
Our parents gave us everything they could, everything we had. They couldn't give enough to give us the best possible chance in life. Had they been wealthier they would have given us even more. Parents know the importance of generosity.
However, our perception of our parents is very often of the two people who always stopped us from doing what we wanted to do just when we wanted to do it. Children must be the most ungrateful people in any social community.
Any practitioner, having got to know something of himself through mindfulness and wisdom, is well rewarded by developing some understanding of his very own parents. Their final gift to us.