Shamanism: questions on the personal journey

Title
Can you talk about shielding?
Can you set too strong an intent?
Recapitulating to not become clones of our parents?
When is the earliest a pattern can appear?
When Have We Gotten Rid of a Pattern?
How many times must an event be Recapitulated?
Does recapping enable us to see intents more clearly?
Why does this work always make me feel on the brink of something?