Thank you Magnus. I was wondering because in the sadhana it speaks about practicing pure perception throughout the day. I had received the empowerment ( and have kept the samaya) and while it is not my main practice I find it sometimes beneficial when say listening to music to veiw it is mantra/emptiness etc. I was wondering if something like this was alright to do? From my understanding or perhaps guess this would be a practice associated with the 4 purties (kriya?) and associated with the lower tantras and then the tantric vows would not be required so it would be a practice okay for me to do?
The short sadhana is very simple to do as I recall, if you received the empowerment and like to do it I think you should. I was thinking of the longer sadhana, which is very similar to the Chokling Tersar green Tara, and involves reciting the praises to the 21 Taras many times. You might need some explanations and/or help from a senior practitioner to do it. Also it takes like at least one hour to do.
If you have the empowerment it will also carry samaya in my understanding. What kind of samaya is a bit difficult to say since the longer sadhana contains a bit of several approaches. The way we approach the similar green Tara practice in the Chokling Tersar is to often practice it first thing in the morning, wash before doing the practice and avoid eating meat or drinking alcohol. Also arrange the altar very nicely and keep it clean. In this way we keep the kriya yoga samayas nicely before practice.
As to pure perception it is a big subject and I am a bit unsure what your question was about that?