enter into
/ˈɛntər ˈɪntuː/
phrase
/ˈɛntər ˈɪntuː/погружаться в
to become involved in or start experiencing a situation, feeling, or activity
- She entered into the spirit of the celebration.
- The two companies entered into a new business agreement.
From the text...you could enter into a magical world where anything and everything was possible.