One of the business books I'm reading right now is the Magic of Thinking Big. While I definitely think its a book that applies to business, it's also a book I'd recommend every magician read. Reading it has been insightful for me in terms of recognizing just how much I already employ the concepts the book discusses in my magical work.
The power of thinking big, as it applies to magic, involves the recognition that your thoughts can either limit or broaden your awareness of possibilities. As magicians we use magic to bring possibilities into reality and one of our greatest tools is our ability to envision those possibilities. I've always found that an approach based on positive thinking (which the book espouses) is useful because it allows you to find possibilities as well as question what is laid out before you.
My approach to experimentation has always been based on possibility, specifically seeking possibilities out. While I have a lot of respect for the ongoing traditions and currents in magical work, I also think its important to examine how magic can evolve with the times and needs. Applying positive thinking to my magical work has always allowed me to see what could occur with my magical practice provided I was willing to explore what might seem like even the most outlandish ideas.
There have always been a few people who've argued that such an approach is fluffy or that someone like me is being so open-minded that their brain has fallen out of their skull. Yet I don't think that is the case. The choice to be open-minded and embrace possibilities is liberating because it allows a person to intentionally explore what might work or might not work. There is no right or wrong answer, not when it comes to spirituality and spiritual practice.
I suggest that being open-minded, thinking big, can be just as valuable a skill for your magical practice as any other skill. You may discover a way of looking at the world and your place in it that drives you to make changes that truly help you embody your desired possibilities. You may discover possibilities you never would entertain if you didn't choose to look at the world and yourself in terms of the possibilities instead of the obvious realities. the obvious realities are only as really as we invest ourselves into them.