You have dug the earth three feet down in one thousand places, and you have found nothing because you have gone to various places unnecessarily. Dig deep at one place. This is the uniformity that you have to adopt in the method of practice. This touches the process called initiation. You might have heard that a disciple, a student, gets initiated into the mysteries of Yoga.
Initiation is the prescription of the technique or the method of meditation.
You will not be able to choose it for yourself always, because you may have doubts as to whether this is good, or that is good , and so on. A competent teacher will tell you, considering your psychological make-up, what would be the proper method of practice for you. This is known as initiation into Yoga. The prescription of the method is important. The method is selected according to the nature of the student, the circumstances in which the student is placed in society, etc., and so it varies from person to person.