Gestalt is a mechanic for making characters significantly more powerful. Basically you take two classes at each level instead of one and get to select the best of everything from between the two. For example if you were to level up as Monk and Wizard, you would get the Monk's d8 hit die, the Monk's saves, and probably the Monks BAB, you would also get the Wizards spell casting abilities, etc.
My apologies if my rampant power gameing contributed to you leaving Shayuri it just seemed it was that kind of game, I can tone it down if thats not the case.
