You cannot think outside the box unless you know you’re inside the box first.
Your box is your identity, in order for you to grow outside your box, you need to have a clear understanding of who you are and where you fit inside your present box.
Only people who are prepared to leave their present box behind are capable of thinking outside their box.
If you learn to think outside the box but do not move into that box, you’re just creating a box for somebody else to enjoy, although that could be your reason for existing. To improve other people’s lives within their box.
The box is very real, however, it will easily expand in every direction to suit the owner of the box.