Although not by me, I feel it best to pass on a beautiful ritual that was come up by a well known Pagan author.
Ritual for Samhain by Scott Cunningham
Place upon the altar apples, pomegranates, pumpkins, spuashes and other late autumn fruits. Autumn flowers such as marigolds and chrysanthemums are fine too. Write on a piece of paper an aspect of your life which you wish to be free of: anger, a baneful habit, misplaced feelings, disease. The cauldron or some similar tool must be present before the altar as well, on a trivet or some other heat-proof surface (if the legs aren’t long enough). A small, flat dish marked with an eight-spoked wheel symbol should also be there. (On a flat plate or dish, paint a large circle. Put a dot in the centre of this circle and paint eight spokes radiating out from the dot to the larger circle. – A symbol of the Sabbats, a symbol of timelessness.)
Prior to the ritual, sit quietly and think of friends and loved ones who have passed away. Do not despair. Know that they have gone on to greater things. Keep firmly in mind that the physical isn’t the absolute reality, and that souls never die.
Arrange the altar, light the candles and censer, and cast your circle.
Recite The Blessing Chant:
May the powers of The One,
the source of all creation;
all-pervasive, omnipotent, eternal;
may the Goddess,
the Lady of the Moon;
and the God,
Horned Hunter of the Sun;
rulers of the elemental realms;
may the powers of the stars above and the Earth below,
bless this place, and this time, and I who am with You.
Invoke the Goddess and God. (in your own way)
Lift one of the pomegranates and, with your freshly-washed white-handled knife, pierce the skin of the fruit. Remove several seeds and place them on the wheel-marked dish.
Raise your wand, face the altar and say:
On this night of Samhain I mark your passing,
O Sun King, through the sunset into the Land of the Young.
I mark also the passing of all who have gone before,
and all who will go after. O Gracious Goddess,
Eternal Mother, You who gives birth to the fallen,
teach me to know that in the time of the greatest
darkness there is the greatest light.
Taste the pomegranate seeds; burst them with your teeth and savour their sharp, bittersweet flavour. Look down at the eight-spoked symbol on the plate; the wheel of the year, the cycle of the seasons, the end and beginning of all creation.
Light a fire within the cauldron (a candle is fine). Sit before it, holding the piece of paper, gazing at its flames. Say:
Wise One of the Waning Moon,
Goddess of the starry night,
I create this fire within Your cauldron
to transform that which is plaguing me.
May the energies be reversed:
From darkness, light!
From bane, good!
From death, birth!
Light the paper in the cauldron’s flames and drop it inside. As it burns, know that your ill diminishes, lessens and finally leaves you as it is consumed within the universal fires.
If you wish, you may attempt scrying or some other form of divination, for this is a perfect time to look into the past or future. Try to recall past lives too, if you will. But leave the dead in peace. Honour them with your memories but do not call them to you. (Many Wiccans do attempt to communicate with their deceased ancestors and friends at this time… if you must do this… make sure you know how to handle the energies and only do this if you are VERY experienced.) Release any pain and sense of loss you may feel into the cauldron’s flames.
Works of magick, if necessary, may follow.
Celebrate the Simple Feast.
The circle is released.