To act, according to the dictionary, is:
To do something; exert energy or force; be employed or operative:
She acted on her dream of teaching others to better understand themselves and their lives through dreamwork, writing, and mindfulness.
To reach, make, or issue a decision on some matter:
She decided to act on her dreams and launch her new business, “Third House Moon.”
To produce an effect; perform a function:
She now acts as a facilitator, helping people access their own creativity, healing abilities and inner guidance by learning to listen to their dreams and use writing as a way to know themselves better.