I think all the above mentioned chemicals, compounds, herbs and infussions, have their place. Other molecules not mentioned such as MDMA and psylocybin should also be up there. They do however, both add to and also in some cases diminish the esential DMT experiance. I belive anxiety before a hyperspace leap, can by its very nature, never be really avoided. The only thing that really helps pre leap anxiety is confidence, born out of experiance. The more times you jump, the easier it becomes.
I am a clown, nothing I say can be taken seriously. It is my profesion to talk nonsense