As the curandero (shaman) sings to a participant in the ayahuasca ceremony they see patterns of lines and colors that can añpear like knots and they use the icaro (spiritual song) to untangle the knots and release the blocks of that individual  
 
This black multi colored blanket is about the size of a guitar and can be folded for meditations and viewed as reminder to stay clear and complete your intyegration work post ayahuasca ceremony