I think the alimentary diet is important to the physical health , but the most important to have a good ayahuasca experience is to prepare your mind and to believe in ayahuasca , and never look at this as a psychedelic drug or as just a funny experience , but this you only can learn after know it , but to learn or to be healed with ayahuasca you need to open you mind and your heart and really need to trust in the plants that you use , you have to look at it as friend as a brother and as teacher , and you need to accept this as a reality and never as a allucination , if you will search to use ayahuasca just to have another cool psychedelic experience you will have just confusion in your head and nothing more , no colors , no visons ,no freedom , only dark and noise , ayahuasca only gives visions if you deserve to have them , or it likes you or not .