Hello again dear brothers, sisters and Instructors. Thank you for your help so far. My question is; I am still in the process of developing my concentration. I'm fairly new to meditation as it's been taught here, and I struggle. Yet I am trying every day. In Meditation Essentials course I've completed the first 6 chapters. In 7th chapter, it says that now students have been practicing concentration for 12 or 14 months, they can move on to imagination part. I'm nowhere that experienced. Should I keep implementing concentration every day or should I go learn visualization/imagination too and practice them together?