Yoga Sutra - DRSYA

The Path of The Yoga Sutras: a practical guide to the core of yoga 
     written by Nicolai Bachman

Principle 4 - Drysa
Ever-Changing Mother Nature

"Listen
all creeping things
the bells of transience."
-ISSA

Seer (Drastr/Purusa) 
conscious
inactive
permanent
intelligent
unchanging
observer
subject
independent
uniform

Seeable (Drysa/Prakrti)
unconscious
active
impermanent
changing
manifest
observable
dependent
composite

The seer (purusa), the instrument od seeing (citta) and the seen (drsya) all play their parts during perception.  Imagine the seer sitting quietly in its own luminosity watching the entire cosmic process; all matter and energy that encompass the changing, manifesting world; watching everything but the seer. 

Thoughts
A conscious, permanent, inner light of awareness pervades the impermanent, changing universe.
I can alleviate suffering by distinguishing between what changes and what never changes.
I will begin to accept the transient nature of all things by the persistent and sincere practice of yoga. 

Exercises
The next time you go to a movie in a theater, imagine a blank screen is your citta; the images projected onto the screen are your thoughts, emotions and perceptions; an the light that allows you to see the images is the seer within you.  Think about the illusory, changing nature of the images.  Notice, too, the emptiness, clarity and brightness that arises when there are no images in the way.

The next time your expectations are not met, see if you become upset.  Explore what you were or are attached to that caused the upset, and then view that thing as yet another changing entity within your seeable world.

Each time you see an object that looks like it does not change, such as a rock, think about how it might have become what it is, and what it might change to in a thousand or million years.