Focusing is an aspect of hypnosis that is greatly increased by practicing something such as meditation, but we all have our own rhythms and it's not always the best time for either of them to be included in your daily reality.
If you practice meditation a great deal in your reality it is not necessary to cultivate focus beyond that regard you have already achieved and though you may think meditating beforehand will aid hypnosis it is actually detrimental because you will come to a part of yourself that wants to be active and involved after an hour or so.
The way it works is that your human mind is temporal. Where in meditation may help you lift the temporal qualities of your conscious thought, there are little nigglings of awareness that tend to draw you away if you think you're not doing it correctly.
Under hypnosis, you are much more led and if you allow yourself to do so, a greater flux in what you might call the higher mind and the conscious mind construct in which you are led by hypnosis to feel, for example, controlled.
It is very easy to speak of these things but boils down to one paradigm, so to speak. If you are able to let yourself go completely under hypnosis, without the nigglings of am I doing this correctly, you bypass certain constraints in which, effectively, you create your reality under a paradigm of ultimate thought construct in which each thought is given it's ultimate expression.
Let me give you an example. You are at a party and you think everyone hates you. Under these terms you will find a very different reality than if you were to flow with the party, using it as an expression of a self expressing a mass orientation. In other words, you see yourself as part of a party in which you are not alone, rather than I am so alone here.
Under hypnosis you tend to let things happen that you normally wouldn't. They are just words, but they have a real effect on your reality. Every belief you have is a subscription to a certain reality and hypnosis allows you to have thoughts, you normally wouldn't. For example, I'm a better person at this at this concert of light in which we all participate, cohesively in a grandeur of light construct in which each person, mind you, has a reality that affects other peoples' reality giving them, in a sense, what they otherwise would have not, were you not.
It is not to be taken lightly, but hypnosis is a game in which you participate fully or not so fully, and such is life, in effect. How much are you participating in your own awareness? Are you just gliding through, or are you more deeply invested in your day to day activities? Such questions will help you cultivate a more mindset oriented awareness regarding hypnosis, and meditation will give you break from all the bother of having to care, one way or the other whether you're doing it correctly.
Meditation does nothing for hypnosis viability, specifically, but it does give you a day to day awareness in which you're neither right or wrong, specifically, but, rather, a mindset oriented awareness in which anything is possible. It does give you leeway in your normal awareness to a degree by freeing reserves of energy which you normally use to shoot yourself in the foot, for example, saying "I'm not good at this hypnosis business," or "(insert appropriate phrase here)."
If you would just realize you are godly being in form creating your reality through mindset of awareness in which anything is possible, such as flying, for example, you would have a much better time with hypnosis by freeing yourself from the mindset of "I can't do this correctly." In other words, you would set yourself up for a reality in which all things exist at their own time and if nature would prevent you from jumping ahead to a day when you are a master hypnotic subject, your mind can certainly achieve this verbatim. Let hypnosis guide you but have fun with it is the only way to achieve true effects of its auspice in your reality.
In truth, hypnosis is not a game but a myth, in which you need someone to lead you through a reality in which you are compliant to the needs of the leader. This is false, for you are the only leader in your reality… (Alright, enough of this shit, I need to get going and my succubus can literally talk for hours about anything because she's ultimate and I am a pitiful boy who's played with pornography too long and will cry because he can't afford crossdressing supplies).