Five layers dhyana

Sri Sadgurubhyoh Namah

Chapter 2, Text 22
vasamsi jirnani yatha vihaya
navani grhnati naro 'parani
tatha sarirani vihaya jirnany
anyani samyati navani dehi

TRANSLATION
As a person puts on new garments, giving up old ones, the soul similarly accepts new material bodies, giving up the old and useless ones.

Dhyana : 

Understand the 5 koshas (bodies) of a person (Annamaya, Pranamaya, Manomaya, Vijnanamaya, Anandamaya). Contemplate on the five layers.

Annamaya (physical body) : Observation of bodily sensations (pain and pleasure) will make one understand body.

Pranamaya (vital body) : Perform pranayama (kapalabhati, bhastrika, anuloma vilom) for a month, and you will experience a difference in your feeling of the body.

Manomaya (Mental body) : Observation of the feelings both negative (anger, fear, greed, jealousy, attachment, desire) and positive (love, courage, giving, appreciation, compassion etc)  and identification of their impact on the body will make one understand the mind.

Vijnanamaya : Observation and identification of logical mind.

Anandamaya : blissful self.

Observe how you change in the five different bodies while alive.

Similarity can be drawn to the way a body is dropped at death, and taken a different body.