A guide is a spiritual being who gives you advice and instruction throughout your life. Some people see their guides as loved ones who are now in the spirit world. Others believe guides to be angels or ascended masters or other divine beings.
Animal spirits (called totems) can also be guides. There are some cultures that even believe that plants and colors and other energies can be guides. Pinocchio had Jiminy Cricket as his guide, and it was simply his conscience. Anyone or anything can be your guide if you trust it.