Sandplay therapy is an analysis of a person's subconscious.
In the subconscious, different people understand things differently: for instance, a [Spider Model], some would interpret it as a [fearful insect], while others might see it as a [mythical creature guarding treasure], or even as a [ugly but strong and gentle mother].
Domestic experts have studied and revised a more standard "Operational Correspondence Table of Sandplay Therapy" to help learners more efficiently understand the sandboxes created by visitors and facilitate comparing the cognitive differences between the visitors and "standard mentally healthy individuals."
Like now, when Chen Ting digs the sand and reveals a blue area, in Nan Zhubin's interpretation, it is an "isolated island" and a "lake surrounding the island."
Nan Zhubin unobtrusively analyzes in his mind, observing Chen Ting and the sandbox she created.