To protect yourself, another person, animal, or any item:
Visualize the protectee in your head if they are not before you, otherwise look at him/her/it.
Draw a barrier of energy around the person in a square on the ground. Allow the energy to build up while chanting. The energy will rise from the ground higher and higher until it has completely covered the protectee with white, pulsing light.
Guardian light
Silvery bright
Wind round
Safely bound
Sky to ground
Locked tight
Repeat for yourself whenever you feel insecure, for objects whenever they have been out of your possession and for your loved ones whenever you feel they need it.