Ibetan Buddhist monks create colored sand images with a radial design. This representation of the universe is called a . This term refers to all centrifugally oriented designs that are used for harnessing spiritual energy, meditation, or prayer.

Mandala

Explanation:

The mandala is the term which is used to refers to the geometrical type  designing process which is basically created by the radial design and form the color sand images.

 The main purpose of the mandala is that it basically representing the imaginary oriented designs which is used for the meditation and the spiritual energy.

According to the given question, the Representation of the whole universe is basically refers as the Mandala and it refers the strong symbolic culture in the Buddhist religion. Therefore, Mandala is the correct answer.