Kicks in immediately. Calm and focusing. You could talk deeply into one conversation forever without falling off the theme. If you walk around, you won't get bored but won't do anything other than just look.
You get so high that you land on Mars and switch to the 4D dimension. Just waves of different highs. Like being in a siren then going to relaxation and back into a the next century. I counted 12 waves of different highs. At the 7th, the high went into the mind. Before, you couldn't eat the damn smudge cookie or even move.
Don't even think of getting home before the 10th wave of high, practically speaking.