There are different types of meditations followed by people for different reasons.
Reiki Meditation
The practitioner should charge himself daily by performing self healing.Go to alpha state for meditation.Follow 32 part Reiki and Self Maintenance Chakra Reiki.
Light Meditation
It can be done to attain intuitive powers.This way of meditation is very relaxing as it connects the soul (light) to the Highest Power of the Universe. Such meditation is followed in Raj Yog meditation followed by Bhramkumaris.
Charkra Meditation includes meditating in chakra’s for attaining “Sidhis” or power.
This should not be done casually as there can be side-effects resulting in imbalance in body & life. This is practiced by saints under guidance of their gurus.