For an action to be considered a service or transgression of GD there must be three elements.
1. Intention by one's heart and mind
2. One sets out to complete the intended act
3 One makes a conscious effort to complete the act with physical action
Nefesh Hachaim
We can use Chana's Tefilah as an example of "pouring out ones soul" in Tefillah. Her intention was to connect to H'shem completely as well as pour out her soul to Him disregarding anything worldly or physical.
Gate Two, Chapter 15 pg99