Samhain (Halloween) stands at the threshold of the dark part of the year.   In traditional Celtic society, this was the time of in-gathering and recollection.  It marks the end of absorption in the outer, momentary present,  the beginning of the time of inner journeying, of re-connection with the ancestors, our guides and guardians  underground, and the awakening of the voices of prophecy.  In the wood, it is the time when the energy of the trees withdraws below ground, the time when next year's seeds lie dormant.  In Tantra, it is time to move inward, to go deeper, finding in our core energy the fuel for personal and planetary transformation.