As A Whole
The design is meant to represents the unknown amount of potential you have confined inside of you. Which is why only PTBG is in the circle.
The acronym, being the beginning letters to hidden words, that reveal an unknown message.
Locked Inside
The placement of the letter is to represent how tightly locked away your potential is. To the point that the letters can only fit by entwining within each other.
The Outside
The words along the outside, going around, represents the message being hidden, due to the beginning letters being locked with in. Beginning letters also symbolizes, that everything starts with you. Without the first letter to each of the words that each letter represents, the word can't begin to form. Which prevents the message from being revealed. Preventing you from unlocking your Potential To Be Great
BUT IT CAN'T BEGIN TO UNLOCK WITHOUT YOU AT THE BEGINNING, MAKING THE FIRST MOVE!