You WILL get what you want with a Talisman. Nothing can stop you.
TheDarkPowers.com
The power given to an object can be entirely of personal choice or can use the principles of sympathetic magick, which is to use something that relates to or resembles the required outcome.
A true talisman is consecrated (purified and magically enhanced, using the moon, salt, water, and many other spiritual rituals) and charged (given power) using spells, sunlight, and many other occult means.
Another factor in the talisman's potency is the use of symbols. If the amulet contains images or symbols that are old or ancient and these symbols have been used by many people for long periods, this increases the power of the item. With so many people focusing their desires and wishes on the one image, it eventually holds more power.
The big question is, how or why does a talisman work? Mostly, a charm acts as a physical symbol of a desired outcome, function, or goal. When you have a goal, you focus on achieving it. Your mind sends out impulses or vibrations to the Universe (God, if you like), and if your thoughts are strong and consistent enough, you will be answered. A talisman gives you a physical focus for this desire--something to touch, hold, or look at.
Quantum physics has shown us that human beings have influence over the physical universe. You can actually alter an outcome by focusing on it. This is amazing; we now have evidence that these talismans have amazing power after all.