Intention is what is intended to be brought forth. Will is the push to make that intention happen. Power is the force behind the push. And, action is the thing that starts the push.
Spells work in subtle ways in order to influence, and manifest your intention through your will. If you set forth your manifestation through the act of magick, and it comes to you then it is most likely your magick manifesting, because your spell allows the probability of that situation to be more likely, though it may seem like a coincidence to you many different factors have gone into determining whether or not that state of being came to be, and it is the intention of your spell to bring that into your life, and to make it more likely. Coincidences also more, or less do not happen because everything is determinant upon factors and your magick is simply an unseen subtle factor that you have ask to aid you in your life. Because, this process is so subtle it is actually quite hard to tell, but in order to truly figure out, if it was your magick or not you would have to continuously test the same spells again in another circumstance in order to see if they result in the same outcome.
Magickal practitioners when they first start usually will hold the understanding that belief in Magick is required for it to work, or for it to affect you, but from what we found for my experience, and study this is simply not true. we believe this idea probably stems from media interpretation. Magick is a process of creating change in conformity with your will, and the fundamental parts of the process that it seems to need in order to bring forth manifestation are intention, will, power, and action. The efficacy of this process is not dependent upon the belief of the individual, though belief can play an important part in magick.
All forms of magick need these 4 fundamental things in order to work. These things are intent, will, power, and action. These basic understandings will allow you to manifest your desire into existence in a basic fundamental way.
Intent is what you want to bring forth through your manifestation. This is your goal, and what you want to accomplish. This understanding is brought into magickal workings in order to be used as a focal point in order to target your desire, and to set forth your will upon it through your actions. This intention can be pretty much anything that can be achieved through magickal manifestation, and it will usually be meticulously crafted in order to focus on a specific outcome over others. This intention will be expressed mentally, or out loud during the magickal working, so that you will be able to focus upon it, and move towards it. Your intention must be very clear, so that you are able to allow your will to fly true. Remember that your intention is only the foundation of magickal practice and it is not the only thing that is needed.
Your will is the power that pushes you towards your intention. It is the fuel and the kna that allows your magick to move forward into manifestation. Your will be charged, focused and brought forth through many different means, and will be released in order to manifest your desires. In magickal working this can be brought through your own personal power, or the power of another entity, or construct. Such as spirits, and deities that you have called forth, or construct such as crystals, herbs, and other objects that have metaphysical properties that are in line with your intention. All of this builds up your will towards your desire, so that it will be able to be released through your action.
Power is the force behind the will and is how the will is applied in order to generate change and is the capacity for doing that work. It is the intensity the will needs in order to fully act out what has been intended, and is the push of the muscles rather than the muscles themselves.
The action is the final step that releases your will, so that it will be able to go out in order to manifest your intention. this is the ritual, or working itself, and is the crescendo in point of realization between your will, and intention that leads to manifestation. It is the first action which brings forth the movement of the magick, and allows your will to start doing when it needs to in order to bring for it your intention. This act can be pretty much anything as long as it signifies your will to start working in the world.