[hdfhu]

The term "meditation" has such a fuzzy meaning these days. It really refers to prolonged concentration on something. We do this all the time. Yogis or occultists refine the term further into 3 stages: a brief concentration, a prolonged concentration (i.e. meditation) on something real and tangible like a symbol, and meditation on the idea behind that something real and tangible. Knowledge workers are very familiar with meditation, although they don't recognize it as a special activity. However that 3rd stage is unattainable for most people today: ideas are qualitatevily different. Mastering meditation on ideas switches mind into a special state. From that point directing mind at things like sun, moon, light or more abstract ideas like the relationship between space and sound produces significant effects or just summons ideas and thoughts about them. This is how great scientists make discoveries: they direct their mind at some topic and summon ideas about it (they don't produce ideas with induction or deduction) and then they materialise ideas into more tangible math.