Minimize expectations take it as it comes . 
Develop a method that works for you .
Music can be distracting I never use it anymore . 
Too many moments decending  into deep zone and having to 
Rip headphones off of head. Icaros are nice but recorded
From a different moment in time having no
relevance to the present moment if that makes any sense.
I started my journeys expecting elves etc. 
What I've ended up  with is far more amazing and fantastic 
Than anything I expected. 
I worked for quite a while before a true breakthrough.
Caapi tea had a lot to do with it .
Really its a host if factors mainly set setting.
Then the purity if spice.
 Carrier herb I use mullein exclusively.
Keep refining all factors 
The only way of discovering the limits of the possible is to venture a little way past them into the impossible.
Arthur C. Clarke   
http://vimeo.com/32001208