Change is the only constant.

That's a common expression, one that I think is really true – especially when it comes to human nature. Try to remember the things that occupied the center of your thoughts 20 years ago. Chances are you have a different set of concerns that consume your mental energies now. You may even find yourself marveling now at the things you used to care so passionately about. That's because life changes us.

There is an amazing journey each of us is on, where we explore something in depth for a while and then we stop obsessing about it. It moves into the background. Maybe we've outgrown it. Maybe we've put systems in place to deal with it in an automatic way. Some things that were once central to our daily purpose fade into insignificance or get entirely forgotten. Some things re-emerge to take center stage again.

The point is, this cycle of change is going to keep happening. Last week I wrote about the importance of preparing for growth in an economic and practice management context, so that you are ready to make the most of each new level.

The same principle should apply to living. We are all on a journey. We are not the same as we were yesterday; we are not the same as we will be tomorrow. But what's really great is when each step of the journey enlightens us to the next step, so that it's not just a journey of change, but one of evolution and growth.

Tomorrow will be different; time will take care of that. As to whether they will be better, that's entirely up to you.