What is the difference between Invocation and Evocation?

OK, so now we come to specifics rules or formulas of approach which are techniques that a student or aspirant of white magic will use to connect to and therefore express qualities of a higher nature or consciousness invocation is the expression of will and desire of the student towards that higher quality evocation is the response of that higher quality towards the student. And so you have a dynamic tension between the student and those higher qualities. Um And this is very specific techniques used by a student upon the path of White magic. If you would like to express it in that way.