The literal translation of Avodah is "worship". In ancient times, when these words were first said, the intention was worship as practiced at the Temple in Jerusalem. This meant animal, wine, grain, incense and other offerings. But with the destruction of the temple in 70CE Jewish worship transitioned from sacrifices to regular prayer.
Today we think in terms of not only prayer - whether it be Friday night welcoming the sabbath service, Saturday mornings, or weekday prayers at home - but also in terms of all sorts of spiritual practice. These spiritual practices might include meditation, yoga, walking in nature, art, and music. Knowing that there are many different ways of looking at this, we are open to exploring these options and more.