This was posted at another board that I'm a member of and want to share this with you here.
To test whether you have the abilities to control your mind, I am giving a simple test. Before sleeping in the night, write down on a paper any time of early morning when you are likely to be in deep sleep and which is not your normal time of awakening. For example 4:30 am or any other time. Now think that you will awake at that time and go to sleep. Next morning see if you can awake exactly at that time without taking any external help like alarm etc. If your eyes are open naturally at that time, you have a good control over your mind. And that is a sign that you can move fast on spiritual path.