It is different because it is Buddhist meditation not christian
I Know it seems stupid but its true.
In most meditation techniques, there are two components -
concentration and equanimity. The concentration element always has
an object of focus. Buddhist mindfulness meditation practitioners
focus on the breath. Christians focus on Christian prayers,
thoughts of Jesus, images of Jesus, etc.
The object of focus is generally what differs from culture to
culture. The similarity is that the practitioner becomes
increasingly absorbed in the object of focus, relaxing into it and
merging into it. Meditation is about absorption.
When thoughts come up, the practitioner often takes note that
thoughts and emotions are occurring, without judgment. The thoughts
are allowed to be like clouds moving through the sky. Afterward,
the attention goes back to the object of focus. This is the
equanimity element of meditation.
Different cultures have different objects of focus and different
ways of centering themselves to prepare for meditation.
Some Christians claim that their approach is more special
because they focus on something while "eastern" approaches require
you to focus on nothing. This is a false claim. There is typically
an object of focus in most traditions.
There is no best way to meditate. You just have to find what you
are compatible with. If you're Christian, I would recommend using
Christian symbolism and objects of focus such as a line of a
prayer, the concept of Grace, a visualization of Jesus, etc.
For more info, you can Google "object of focus meditation tips".
If you're Christian, you can Google "Christian meditation" or
"contemplative Christianity".