Personal development (also known as self-development or personal growth comprises the development of the self. It refers to individual self-development, and personal development programs, tools and methods.
Perhaps the most important realization that an individual can make in their quest for personal growth is that there is no one size fits all formula. We all have different goals and priorities, which means that different activities and attitudes will make us feel good about ourselves. We also have different natural strengths and weaknesses that are a part of our inherent personality type.
Self-knowledge is one common goal that will help every one of us achieve personal growth. Modern neuroscience tells us that our sense of self is as illusory as the Buddha taught. We can and do change all the time, depending on where we put our attention, the company we keep, and our physical environment.