Consider phrases like the following:
"How to count the steps along the path, when the path is One?"
"The mind is the mediator of the world"
"Then the center, follows from the first two fields of the mind, internal, and middle..."
"Close your eyes! And fill your mind with the world around you!..."
Even if these phrases don't make sense at first, they are highly mind-expanding.
Otherwise, you can try drinking more caffeine and chocolate milk, and use techniques to awaken lucid dreaming, like owning a lapis lazuli, putting water to cool your chest before bed (seriously, I've heard this works for dreams!), or writing a dream journal.
Dreams can then be used in everyday life, as the psychic mind expands, everyday events will seem more psychic, and can then be connected with any intellectual or emotional work you are doing. The effect is that it becomes more meaningful.
Books like The Artist's Way, What Color is Your Parachute, and The 5 Faces of Genius contain interesting quotations that can be used to think about what matters, what is important, and what you want to achieve in life. I also recommend Elias Canetti's books of quotations called The Secret Heart of the Clock (he won a Nobel Prize posthumously), and Lichtenberg's deceptively-named The Waste Books, which contains some of the best Western aphorisms.
You will be surprised with how intellectually or emotionally oriented mind-expansion can be. Sometimes it depends on specific words to make that significant progress.
Otherwise, there are also significant books on Buddhism and magic, such as The Yoga Sutras of Patanjali, which I recommend.
The quotes come from a book of spiritual writings which I have not yet published (by Nathan Coppedge). I think it has some good advice.