Amrita Bindu Upanishad, being one of the five Bindu Upanishads (Tejo Bindu, Nada Bindu, Dhyana Bindu, and Brahma Bindu), belongs to Krishna Yajur Veda. The main mode of teaching of this Upanishad is Jnana Yoga. Two Meditation kriyas are also given.
Desires make the mind impure. Mind when attached to the objects of desire gives bondage. When not influenced by the objects of desires it leads to liberation. The impediment for liberation or Mukti is desire. When freed from bondage, Mind reaches the state of transcendence where Self does not exist. It is the mind that makes the bondage and it is the mind that liberates. Control the mind to reach that stage of transcendence. This is wisdom as well as meditation.
Mediate on the sound of Om as Brahman or Paramatman. When the Om dissolves, the Brahman remains. Meditate on that Brahman to attain Peace.
There are two stages. The first stage starts with the meditation on the sound of Om. Mentally Chant Om and think Om as Brahman. When your focus becomes deeper and deeper, the sound will merge with Brahman and Brahman alone will remain. This is the second stage. Mediate on that Brahman.