Let's get straight to the point. Here are the basics that are necessary for magick. Without these, you are very likely to have little to no success in your spells. These are the very basics for those starting out. I have found these to be extremely true, as well as effective. I do not want silly comments or disagreements. This information is here for those who truly want to learn the Craft and gain knowledge. This is very basic yet very effective. I've read this in many books and done my research, so here it is.
Altered Consciousness: This is basically changing your brains energy levels. You can do this by Meditation, Visualization, Chanting. The most common one however is meditation. It helps you relax, center, and ground yourself, as well as increase your concentration and energy levels. For this, you can just get comfortable, let your whole body relax and drain of stress. Some like to count down from 10 to 1. It is up to you, but remember to truly and genuinely relax.
Strong Intention/Will: This is a given. You NEED to have a strong will and intention. It must be a CLEAR intention. You need to know what you want clearly, with every detail. This is important or else your results will more than likely not be as you anticipated. Sit down and truly figure out what you desire. Don't have a bunch of thoughts running around. Break it down really simple.
Desire/Need: Desire is a huge one, and I think most people overlook it. While you may have have a strong intention and will to get what you seek, you have to truly desire it on a deep level. I don't mean "Oh, I wanna be rich." We all want that. But with magick, spells usually only manifest with genuine need. You don't do a spell unless you NEED the results. Most of the time, the spells won't manifest, because you don't have that deep need of them to work, therefore the energy isn't as strong. Desire it at all levels.
Feeling: You need to feel it having already happened. If it is a love spell, feel the love around you. Be the love. Become one with it on all energy levels.
Directing Energy: This is the one where you send your energy out into the universe to manifest. You can do this in many ways. One way is by chanting or saying an incantation. This method is great because on a symbolic level, you are literally bringing your thoughts into reality by speaking them. You are making sound, making an energy level according to your will and thoughts. Words themselves are extremely powerful. The words can be anything, however usually more effective if used in the present tense, as in, "I have money" or "I am loved", etc.
Forget: This is the final one, and probably the most difficult for most, but it is necessary. After you have cast your spell, forget it. You have already sent your energy out into the universe, so let it manifest. If you keep thinking about it, then the energy will return to you. If you want it to manifest, then let it go so it can manifest! This may be hard, but just push any thoughts of it from your mind. Patience is a big thing with magick. You need to be patient, and let magick happen. Release your energy, and let it flow to manifest.
If you can do these things, then I can promise you will have much more success with magick and spells. These are the very basics, which I know a lot of you are searching for. It can be hard to find a source that will just tell you. I'm not claiming any credit or claiming to be better than anyone. I'm simply stating what I've learned and found effective personally to help others achieve success. Magick is a beautiful and powerful thing if used properly. Blessed Be!