Kundalini meditation

I agree that when starting to open your chakras you need to work from your root up to your crown however once open you also need to be able to allow the energy to flow not only up but down. Having energy flowing in both directions enables the energy to flow more freely and enables you to push negative energy out of the bottoms or your feet as you pull positive energy in through your head. The reason you need to start with the root as you open your chakras is so that you remain grounded as you open up to the universe. Starting with your crown can cause pain and make it harder for you to concentrate on what you are doing.

You seriously have nothing to worry about because it doesnt just happen to raise your kundalini the first time you try it, there are yogys doing it for 10 years or a lifetime to finally do it succesfully. And if it would happen from the first try there is nothing to be affraid of, you should experience a huge improvement in your phisical and spiritual health.