There are (at least!) two general forms of prayer.
One is prayer asking for my life to change.
The other is prayer inviting the divine to change me.
The first type of prayer is perhaps what many think of first. It’s the “dear God, please do this for me” type of prayer.
The second is a form of prayer that can be profoundly transformative. In its most explicit form, we find it in the Jesus or Heart Prayer, and also in the Christ meditation. Any form of spiritual practice, when done with heart and sincerity, is an invitation for the divine to work on and change us as a human and divine being. So any type of spiritual practice can become this prayer. (Including basic meditation.)
We can do it from the view of me as a human being inviting and allowing the divine to transform me – all of me, through and through. (Including what seems the most essential in me, and what “I” may hold onto and cherish the most.) And it can also, if it happens on its own, be a resting as the divine recognizing itself as all there is.
Note: I gave a couple of examples from the Christian tradition since that’s what I have the most experience with, but this goes for all traditions and non-traditions. If I use a more theistic language, I would say that there is one God and many religions and spiritual traditions, and all of them have some good pointers.