Yoga is a never-ending process of purification.
Every time I engage in my practice I let go of a grain of sand stuck on my muddy glasses which prevents me from seeing the reality the way it is.
Hence my suffering.
Yoga can be compared to a preparation for a final exam - there's a number of subjects one needs to comprehend in order to happily pass it and achieve this perfect unlimited freedom we all head for. Philosophy-Asanas-Mudras-Pranayama-Shatkarma-Meditation.
One of the most fundamental elements of Patanjali's yoga regarding individual discipline is sauca, cleanliness, understood multidimensionally.
Not only do we attend to personal hygiene and keep our closest surrounding neat and clean, but also we reach for purifying techniques, proper diet, cosmetics (the latter ones being at least non-tested on animals and paraben-free).
Then, on a more subtle level we purify our minds from afflictive emotions and thoughts, such as judging, aversion (all our likes and dislikes), envy, attachments and desires.
Most easily - through meditation on their imperfection, acknowledgement and awareness where they will take us.
So if I'm jealous of my man for no reason I become conscious that my oversensitive imagination, wild beast is just about to take me to some dark unpleasant place I don't want to be.
Or if I want something so badly it makes my soul cry I contemplate impermanence - the fleeting pleasure this very thing will finally turn out to be.
Then it's my choice if I still want to pursue it, not my feverish need.
After all - all my journeys I'd been dreaming so much of, came to an end.
I would always get back on a plane and land in Warsaw.
Same with my beloved studies, relationships and all I derived joy from.
Completely temporary (yet refreshing and congenial).
So each time I stand on the mat I transform the tamas of my body and the rajas quality of my mind into sattva.
Each time I sit in meditation, breathe, do a cleansing technique such as nauli kriya or trataka I get rid of one tiny impression, samskara which will enable me to perceive everything more clearly.
And it's a never ending story because as the day goes by one thing will irritate us, other attract and attach.
We will want to reach somewhere, achieve something, we'll use bad language, be unkind, lazy, we'll see ourselves as better, and others as worse or non-deserving (or the other way round).
So not only do we have to purify our long-ago accumulated karma but also the one we're gathering right on the spot.
A never-ending process of purification.