Hướng dẫn Thiền (Chuẩn và hay) is an Android app developed by Tiểu Vũ that offers a meditation guide for beginners. The app is designed to help practitioners achieve a state of calmness and clarity by focusing their minds and eliminating distracting thoughts and emotions. The meditation guide is based on the Four Foundations of Mindfulness scriptures of Theravada system, with the goal of saving glass selflessness and attaining enlightenment.

The app provides a step-by-step sequence of the meditation practice, ensuring that beginners can learn and practice the technique accurately and effectively. It is an excellent resource for anyone who wants to learn how to meditate and experience the benefits of this ancient practice.