I am looking for a solid ashram/program to meditate seriously for 6-12 months. Does anyone have experience doing one of these? If not, are there long term residential retreats that you are looking into or know about? I am at a unique place in life where something like this is possible for me, and the call to do so cannot be put off any longer.  I have heard about: Zen Mountain Monastery  Sadhguru's Sahanapada  Peter Ralston's Apprenticeships (but these require getting a group of people together)