Meditation is like a big tree. There is a common and universal trunk, with endless ramifications and fruits, which adjust to the sensibilities and particularities of the different spiritual traditions. In this elaborate, concise and didactic book, the teacher Ramiro Calle exhaustively reviews more than a hundred meditation techniques belonging to the different traditions (Hinduism, Buddhism -whether Theravada, Zen or Tibetan-, Christianity, Islam, Jainism, Taoism, etc). All of these techniques have the potential to transform us, put us in the present moment, or calm the mind. And, although a book can never be the substitute for the teacher or the instructor, this work can provide the necessary panoramic vision for each one to learn from the tradition or the technique that best suits their needs.