With a simple explanation of a ritual that has served me well, I will demonstrate why that is not always the case.
You find yourself faced with two untenable choices. A dilemma, by definition. You don't really wish to make either choice. So what do you do? Flip a coin. When you see the result, you'll either feel a small amount of dread or of relief- it will be small, but pay attention for it.
If you felt that small tug of dread, ignore the coin, and do the opposite. Otherwise, do what the coin said.
You see, the reaction you felt was because some part of you already knew what it wanted. But you were overthinking things, being distracted by the great-big-brain that's often oh-so-useful, but has a problem knowing when to shut up. So we shortcut it- we have an outside source tell us what to do- and based on our reaction to that advice we make our decision- not based on the advice itself.
On many occasions, I've added more trappings to it- charging the coin, often with lasers (which I find works delightfully as a wand/athame combo), using something else fairly arbitrary, whatever. The basic is the same- I guage my reaction, and do what I really wanted to do in the first place.
Most of the time, that works out just fine.