This is one of my favorite Qigong meditations for healing. This video is Kris Deva North explaining the basic concepts of energy-flow in what the Taoist Classics describe as the 'Small Heavenly Cycle,' or 'Lesser Circulation.' This ancient practice was adapted for modern usage by Kris's teacher and co-author Grandmaster Mantak Chia as the 'Microcosmic Orbit.' For more details see "Overview".
Different chakra energies provide different types of experiences. You can train yourself to cultivate and use these subtle energies for more diverse purposes.
QiCultivation.com - Information on using the tools and methods to better sense subtle, spiritual energies, as well as receive and interpret the messages, and use/direct those energies.
AnotherQ.com - Personal experiences with subtle, spiritual energy.
QigongByQuist.com - Using Qi and subtle energies to help you maintain your health and wellness.
QibyQ - Directing subtle energies to help the earth and humanity