Do not abandon the mind’s object
In practice, the mind must have an object to meditate on. If the mind has no object, it will wander. No matter what stage of practice one is in, the mind must have an object to dwell on. Not only us ordinary people, but even the arahants, they still cultivate the four foundations of mindfulness as their meditation object, using body, feelings, mind, and dhamma to give the mind a home. However, we are different from the arahants in that we still cling to the five aggregates. We meditate on the four foundations of mindfulness as our meditation object to develop wisdom, to understand correctly, and then to let go. The arahants, with body, feelings, mind, and dhamma as their meditation objects, their minds separate from and transcend the aggregates. They don’t cling and see the aggregates as emptiness. While we ordinary people see the aggregates as our self. Therefore, one cannot abandon the meditation object of the mind. Observe yourself.