How to perform Muraqaba

1- Candles: 

Turn off the lights in the room and set some white candles around.

2- Fragrance:

Have some fragrance according to your astrological character or just put some roses/flowers with some beautiful fragrance.

3- Sounds:

There shouldn't be any sounds (of Telephone, Bell, People) coming in the room.

Beginning Muraqaba

1. After morning prayer (salah e fajjar) or after Isha prayer, before sleeping, sit down on the ground.
2. First of all free your mind of all the thoughts. Normally, everyone is in the state of too many thoughts. It means they have a lot of thoughts at one time. Now, gradually start ceasing all of the thoughts, so that you get free of all thoughts (Just like a blank page). If you face any difficulty in getting rid of thoughts, then put a bowl full of water in front of you, then start whatever thought comes into your mind, grab it and put it into the water, with your imaginary hands. This way, in a little while you'll be free of all thoughts. Now, you can move forward to number 3 or 4 given below.
3. Now, don't do or think anything. After a little while some picture will come in your mind or voices will start coming from inside. These signs and sounds, in fact, will be coming from your Innerself (Rooh/ Soul) and with help of these one can find much about hidden (secret) things.
4. Or you, yourself, should imagine some particular thing (Chant of God's praise, Some holy sight, Your lover or God ) 

If done 20 minutes daily, soon, one will find success in Muraqaba.

One Example for "Particular Thought"

Within power of imagination, get out of your body and fly high in the air, towards Shrine of Hazrat Ali (A.S) Go inside come out and then come back to your body and open your eyes.