The position and behavior of the image in the text are called alignment. You can include an image on a text line or drag it freely over the text by choosing different options for the reorganization of the text around the image.
Click on the image to select it and drag it to the middle of the text.
.In the Ribbon, select the "Picture Tools" tab > Arrange > Position.
Mouse over the different option and observe the behavior of text around the image and choose the option that suits you best.