Sexual Energy and Spiritual Energy

Sexual energy and Spiritual energy seem to be intimately linked. I find that the more I practice meditation and other spiritual practices, the stronger my libido becomes. This is almost nerve-wracking. It seems the increased flow of energy or 'chi', if you will, wants to be used or released, one way or another. It has taken a great amount of self-discipline not to translate these urgings into actions.
It has been said that spiritual energy is a higher octave of sexual energy. Whether this is true or not I cannot be sure, but my experience would indicate that the two energies, or instincts, have a relationship of some kind. This requires further study on my part.