The ever-functioning mental factor that engages mental activity with a specific cognitive object. The cognitive engagement may be merely to pay some level of attention to the object (strong or weak), or to focus on the object in a certain way (painstakingly, effortlessly, etc.), or to consider the object in a certain way (concordantly or discordantly). Also called: paying attention, consideration, take to mind, taking to mind.
Tibetan: yid-la byed-pa
J Hopkins: mental engagement/taking to mind/mental contemplation.