Samhain is considered by many Pagans, Wiccans, and Witches (especially those of Celtic heritage) to be the date of the Witches' New Year, representing one full turn of the Wheel of the Year.
This is the time of year for getting rid of weaknesses. A common Ritual practice calls for each Wiccan to write down his/her weaknesses on a piece of paper or parchment and toss it into the Cauldron fire.
Other activities might include Divination, Past-Life Recall, Spirit Contact, Meditation, Astral Projection ("Flying"), and the drying of Winter herbs.
It is considered "taboo" by some to travel after dark, or to eat grapes or berries.