Already the exercises of the turkish Bhektaschi-Derwisch-Order show how much the exercises of the Sufi-Orders and other orders have been kept secret.
Common in Islam are the rotation of the perl-rosary and of turning the hands to 'Allah' in Heaven. This offers a very simple Sadhana, which later allows the inner ride on the Buraq , until the'Fana-fi-Allah'.

A modern islamic inner practice could be following :

1.Rotation of the rosary and half loud repetition of the name 'Allah' for 20-30 minutes.

2. Half loud repetition of the name 'Nama-Allah'(Na-Ma-Al-la-h) with concentration in the heart and visualization of a half open crescent with a bright shining fivestar in the center (30 Minutes) of the crescent in the heart.

3. Visualization of a crescent above the head mit a brightly shining fivestar above the crescent (30 minutes + , depending whether a beginner or progressed) and inner repetition of the name 'Nama-Allah'(Na-Ma-Al-la-h) in the fivestar.

The practitioner should be alone during the exercises ! The "Holy Name of Allah" is the spiritual force which comes from heaven ! Of course can the exercise be startet with holding up the hands and calling to Allah.