Q: If we cross the barrier, does it mean we can no longer do something without the right intention, such as in our “ordinary lives?”
A: No one does anything without intention, since nature does not permit doing anything without a reason. When energy is spent, we demand to know what it is spent on. The expending of energy happens subconsciously.
In the process of studying Kabbalah, we gradually start answering these questions more consciously. Crossing the barrier means that all conscious processes will occur with the intent to benefit the Creator, while biological ones will remain as before, since bodies do not change.