Meditation will be quiting the mind and being peace:

will be with proper accord

meditation will be {the} quieting the mind [without control]
and being Peace {[to begin unjumbling the thoughts as dis-quieted]}

and will not mean {with avail and accord}

controlling the mind nor using outer stimuli such as the debated
visualization [as visual technique doesn't begin at the mind readily]
with peaceful accord not to begin "tranquil" such as promote{ing} :
herbal or scintillate such as "sage water" where as the meditation
is a natural form to relax the mind with ideal recognition and then     recognise the thoughts will be more Peace~ful .  Ev

I use meditation as the means of making stuff happen with the mind. Stilling the extraneous randoms thoughts that pop up takes time and practice. It might take several weeks before a person can really still the mind.

Then after you can still the mind, it becomes a question of how long can you still the mind for?

And then after that, you can use the mind as a tool.
The mind can be used to direct energy into the soul, and cleanse the aura too.
You can use visualization and affirmation to do many things...
Hell, it all stems to meditation. A trained mind is worth it's "weight" in gold.

The mind will be calm without extra thought with practiced meditation
during the meditation itself and after during times of peaceful thought
while eating can effect the digestive system and affect peaceful mind.

Smoking is known to bother the tendency of mind to be peaceful and
it can effect the ability to quiet the thoughts as smoking buildup seen
by some as tobacco "resin" or other effect of recreation can bother .

The natural mind doesn't perform visualization without actual training
or assistance to show the effect visual herb or drink keeps the mind's
natural thoughts suppressed and can enhance seeing audible vision .,

I recommend meditation and not visual 'additive' . Thanks . Be Peace .

I dont know if you should really be thinking about something while meditation, but I feel it is all about concentration exercise where you calm yourself and just forget about everything and not remember anything at least for some time then

The quieting and silencing of the mind last a nanosecond at best.  The mind and brain are designed to produce thought and mirror thoughts.  Silencing this natural process is next to impossible.  

To find peace of mind, go to somewhere peaceful in the mind.  That means a visualization attached to the meditation.  They work together and include affirmation as well.

When you are in your own quiet place you are at peace body, mind, spirit.  Nothing will disturb this solace until you choose to allow another thought to enter.